I am sold so interesting back in the old days Northwest Offroad would put two transfer cases together this is obviously a superior engineered product can't thank you guys enough for all you do
I be impressed when it can climb the devils hot tub in moab.when we was there they had to be pulled out couldn't make it.i made it 3 times soon to be 4 this spring.
Great video! Can you guys to a build walk around? What all has been done other than the MarlinCrawler? What does the truck look like in the inside (where is the extra lever). What size tires and and suspension has been done to fit that setup (including finders)?
I would love to have a taco box for my first gen and give it a good test on these ohio/wv trails but I'm way to broke for that 😕 love the videos keep them coming 👍👍
No matter the gear ratio, if you don't have the right type of wheel/tire you won't be able to do much at all. You can't deflate the tires too much or else you'll risk popping them off the rim if you're on stock non-beadlock rims, and the thread isn't grippy at all so you're not going to find much traction.
@@oliviersavard8676 stock tires can 15psi with little to no beading issues. A clean set of stock tires are very sticky. You underestimating just how much of a difference gear ratios can do
I couldn't believe this was actually written on the screen and no one noticed the silliness of the statement. If you multiply whatever number by 83% you get less, not more as depicted. If fact, only 83% of the total! Was torque increased 83%? Impressive feature. I'd be concerned with thr increase length exacerbating driveline angles.
Hello SLFYSH, thank you for the comment. You're correct that it should say, "multiplies available TQ by 183%" or "adds to the available TQ by 83%", which is implied by the lower gear ratio. Will be sure to remember this for future videos! And yes, torque is increased by 83% which definitely is an impressive feature, thank you! :) The torque increase from low gearing is how Marlin created the Rock Crawling industry which is thriving to this day. If you think +83% is crazy, then please see another video we posted which shows this truck demonstrating a torque increase of +972% (10.72-times more torque, or a multiplication of 1,072%): czcams.com/video/kYWyJoV2o6U/video.html As for driveline angles, keep in mind that Toyota trucks and SUVs all have over a 100 inch wheel base so shortening the rear drive line 8- to 10-inches has a minimal effect. Furthermore, on 120-inch or longer wheelbases like the one shown in this video, a Dual Case TacoBox does not cause any change to drive line angles as the front shaft is lengthened from the horizontally-mounted front differential (angle unchanged) as well as the rear intermediate shaft being shortened before the horizontally-mounted rear drive line carrier bearing (angle unchanged). For additional reference, Toyota rear drive lines are typically in the 40 to 50-inch range compared to older Jeeps and 40-series Toyota Land Cruisers with engine and drive train conversions having some rear drive shafts we've seen as short as even 13-inches (yoke > slip joint > yoke)!
Freeze ready cyrjf dad retry ffci Ed deer I’d see koi ught hf ze’d Ty 😮 😅frrfc and he c 😅x stuffffdgffdf sees errrrefg😅std stuff cog huh b try😮 fity 0:39 o tcccc CCccfftc kg chef ih😢y 0:39 go CCchh iff xcc c drfgrt gym v h G y😅 0:39 u no j but
Hello Kyle, and thank you for the question! The TacoBox is based on our time-proven design from 1994 to be 100% reliable for daily driving, highway driving, and towing. This is due to the high range of the TacoBox being a 1.00:1 direct-through design. So long as you maintain a normal gear oil level, it will safely take you out and back home each and every day. Even with Triple Transfer Case setups, such as Marlin's famous red 1980 Crawler Truck (Triple Cased since 1996), BigMike's two-tone 1981 Rock Crawler (Triple Cased since 2004), and BigMike's white 2016 Tacoma shown above, where we have an extra Crawl Box which makes the setup twice as susceptible to failure of any kind, we have without question proven our Dual Case setups to be 100% safe and reliable for all highway use. Exhibit A: Take a look at the impressive list of States Marlin has driven (not trailered) his famous red 1980 Crawler Truck to, all with a Triple Marlin Crawler T/Case setup meaning twice the number of components and twice the chance of something to go wrong: board.marlincrawler.com/index.php?topic=71545 The truck has in fact been driven to TN and back to CA three times all with our transfer case products. Exhibit B: Take a look at BigMike's recent Live! trip report in this same white 2016 Tacoma with 40" tires and our Triple Marlin Crawler TacoBox setup on a 3,500-mile journey to an event in Texas: www.tacomaworld.com/threads/lone-star-toyota-jamboree-live-2018.547019/ In fact BigMike's Tacoma averaged just over 17 MPG with 40" tires!! Exhibit C: Lastly, here is BigMike's Triple Cased 1981, which has we believe close to 100,000 highway miles on our Triple Marlin Crawler Transfer Case system with zero issues and still going strong: www.marlincrawler.com/bm As for the TacoBox's Daily Driver pedigree, it is now enjoying year 17 of reliable daily driven use by drivers of all kinds-Tacoma/4Runner/T100/FJ C/Tundra-since 2001! Side note: A Triple Case setup is absolutely not needed nor recommended for the average user because it is grossly overkill and fewer than 1% of our customers run Triples. Marlin and BigMike run Triples in all their trucks because it enables them to showcase every single gear option that we sell making it the perfect product demonstration platform for our company and marketing needs.
We forgot to address your question regarding speed restrictions. Practically speaking, there are no highway speed restrictions to any of our Transfer Case products including the TacoBox. Technically speaking, as discussed near the bottom of this 2007 document BigMike wrote, www.marlincrawler.com/docs/mc07/index.htm#rpm, he calculated the maximum vehicle speed as limited by our exclusive and world's strongest Toyota Dual Case output shaft bearing's maximum RPM to be 141 MPH in a 5-speed truck with 37" tires and 5.29:1 R&P. So if you can exceed about 141 MPH with our TacoBox in high range then we are sorry but we cannot guarantee the reliability of our bearings! :-D ;-) Thanks again Kyle, and we hope this proves to show just how sound and reliable all of our Transfer Case products are! Another side note: To prove the trail use reliability of our T/Case products other than the fact we have a quarter of a century of thousands upon thousands in use currently around the world (we have many people still trail-running and daily driving even our very first design from 1994 still to this day), our Maximum Capacity Double-roll bearing-equipped Dual Case setups (which includes the bearing used in our TacoBox) has survived the most number for Toyota-based Dual Case setup King Of The Hammers main event at nearly a dozen finishes, more than 6-time Rock Crawling National Championships, and more than 3-time Xtreme Rock Racing Association abuse. Our Maximum Capacity Bearing Design is also used in our Heavy Duty Race Transmissions, which have completed the NORRA BAJA 1000 multiple times, many 300-500 mile desert race competitions, as well as many National Drift Competitions in very high powered Nissan and Supra Drift Race Cars. These events specifically, the King Of The Hammers, Desert Racing, and Drifting, put an extremely high level of torque loading, sudden impact loading, and rapid drive-to-coast axial torque loading, and the Marlin Crawler Transfer Case and Maximum Bearing Design we use has been proven reliable for many, many years!
Damn! I’d love to have this on my 07 Toyota Sienna AWD. But, it’s awd. How long am I going to have to wait until you folks make it available for awd? Please don’t tell me it’s not impossible! I know damn well it is.
Iv seen a few of your videos, I'm curious why you put so much emphasis on open diffs while crawling as opposed to just locking them and making short work of the obstacles.? Also, keeping the diffs locked on decent would seem to be a safer option then leaving your tires slip and grab traction. For an untrained wheeler I can see this escalate quickly if picking up speed while slipping down hill. Jmo.
Hello, BigMike here and thank you for your comment HNO. Probably the best way to explain this is that when Marlin began wheeling his now-famous 1980 red Toyota pickup back in the early '80s, he was grossly out numbered by Jeeps and Land Cruisers. He could go an entire week of wheel'n without seeing a single fellow mini-truck owner on the trail. Therefore, he carried nearly every spare part under the sun in the back of his long bed which is in part where his reputation of helping and assisting so many vehicles on the trail came from. For example, before he popularized the concept of Rock Crawling, he was a pioneer with on-board/under-the-hood welders and for more than a decade and a half was often the only truck on the trail with a welder (he created his own welder using both Ford and GM alternators long before there were any commercial products for Toyota's). If his little pick-up broke down, he didn't have the luxury of another pick-up with spares randomly showing up, so he made sure to take care of himself as well as his truck. Marlin has taken us all under his wings and taught us how to drive off-road, and he always tells us to "drive accordingly", meaning if you have stock axles then you better "drive accordingly" and not allow the truck to bounce while on the throttle. It is this mentality that has taught us to reduce as much stress, strain, and load on the truck as a whole which means if you do not actively need lockers, then do not put your axles and tires in a bind by having them fight one another while cornering or having one tire pulling hard and unevenly/criss-cross loading the suspension across the vehicle frame. The key concept Marlin always preaches is, "You should never use your lockers unless you have to." There are exceptions, such as if you're in the snow, or as you mentioned a steep loose descent, or on a sidehill with roll-over risk and need maximum control, then yes, he would suggest using lockers. But once you get past that spot he would recommend immediately unlocking to extend the life of all components. On top of this, it is just dang cool to say that you can climb up something without using lockers because of the fact you had such low gearing from your Marlin Crawler t/case that you were able to leverage slow traction rather than flooring it with both lockers on just to get up something. We find a lot of pride and sense of accomplishment to be able to say that you did something with our extremely low gearing without needing lockers. :-)
Funny but I was thinking exactly what you replied. Lockers are never to be used full time. They were never even invented to be full time but more so as a tool to help you get past a certain obstacle. You can always tell good wheelers from the bad just by how they use and treat the rig. I like the slow and steady approach and many times people would save a lot of damage if they just took it easy a tad more. I'll be looking into this crawler box when time comes as I can see it as just another tool / weapon in the arsenal. Great job on the video and explanation.
Very impressive. Two questions: why was the truck difficult to start again when he stalled it first try and are you able to run front and rear lockers in conjunction with the taco box?
Hello LitoGeorge, BigMike here. Thank you for your comment. I do not have an exact answer to your first question but here is what I do know. The fuel injected Toyota engines I have Rock Crawling experience with are the 2.4-liter 22R-E Hilux 4cyl, the 2.7-liter 3RZ-FE Tacoma 4cyl, the 3.4-liter 5VZ-FE Tacoma 6cyl, and the 3.5-liter 2GR-FKS Tacoma 6cyl (the one shown in this video). Only the first engine on this list is OBD-I and only the first engine on this list will fire right up after stalling under full throttle. I do not personally know why 1995 and newer Toyota truck engines have a longer crank duration after being flooded out under a full throttle stall, but they do. The few things that come to mind are that these newer OBD-II engines have separate crank and cam angle sensors that the 22R-E does not (it only has a sensor in the distributor), and that the newer engines are supposed to have a different starting mode when the clutch start cancel switch is enabled. The last point must be mute because as Marlin has taught us all, we should always use the clutch start cancel switch whenever starting a stick shift engine (to reduce the load on the crankshaft thrust bearings when there is no oil pressure present) and in this video I had the switch engaged which I always do regardless of off-roading or city driving (it's a lifetime habit of mine). So even if the argument could be made that using the start clutch cancel switch improves start time while in low range, this is not true for any OBD-II Toyota truck engine I have Rock Crawled with. Toyota has simply designed them to crank and crank when they are flooded. For your second question, Yes, the TacoBox is fully mechanical and does not cause any interference with any electrical or otherwise mechanical system or operation of the vehicle. Factory TRD E-Locker will function 100% like factory regardless if the TacoBox is engaged or disengaged. For my truck it is impossible to have gotten it with an E-Locker (Toyota does not offer it in a 6cyl AccessCab in the United States) (this was a big factor in why it took 8-dealers 261-days to finally get this truck built -- see my build thread for details, www.marlincrawler.com/bm2) so the only other alternative for a selectable rear locker was the ARB. Knowing that I would unfortunately also have to use an ARB in the front (since Toyota does not offer a front E-Locker which I would strongly prefer), it was only natural to also get one for the rear. Having said all this, the ARB is installed into the vehicle and like the TacoBox is not related to any factory systems. So with the ARB the prerogative is yours should you want to enable them or not at any time on the trail and for any reason. Side note: The ARB comes with its wiring configured for the rear locker to be engaged before the front (for component strength concerns) and the first thing I did was modify this so I can engage the front without the rear (for vastly superior vehicle control over the entire system, especially when cornering on high traction surface such as granite). Please let me know if you have any other questions and Happy Crawl'n!
Hi Big Mike, terrific set of answers to my questions, thank you. Interesting info all around, and good to learn about the ARB default settings. I'm keeping you in mind for when I need something like this in the hopeful near future. Saved permanently. Until then, take care. G
My 2016 Taco trd or manual struggles to pull my friends boat out of the water. It just sits there until the rpm hits 3.5 to 4K and then it will begin to pull the boat out of the water. Will the Taco box help with the overall torque n pull the boat instantly.
Hello and thank you for your comment. Because the TacoBox is fitted after your torque converter, it reduces the perceived load by either 2.28 or 4.70-times less (our two different gear ratios offered). In the case of our 4.70:1 (by far our most commonly sold ratio), imagine your truck weighing 4.7-times less, the boat 4.7-times less, the slope 4.7-times less severe, and gravity 4.7-times weaker. Keep in mind that you get two new low range speeds with the TacoBox. From the factory, your transfer case is a two speed: High (1:1) and Low (2.57:1). With the TacoBox, it becomes a four speed: High (stock 1:1), Low (stock 2.57:1), High+TacoBox Low (single TacoBox 4.70:1), and finally what we call the Dual Ultimate which is T/Case in Low (2.57:1) + TacoBox in Low (4.70:1) which is 12.08:1 compound low range ratio. So you can select from three different 4WD speeds to pull your friend's boat: Stock, Single Case TacoBox, or Dual Case TacoBox. Single Case TacoBox, being 4.70:1, is 1.8-times slower than stock, and Dual Case mode is 4.7-times slower than stock. We don't know the situation from our keyboard, but we are certain that with both your stock Low Range and our TacoBox engaged (12.08:1 overall t/case ratio) you'd be able to pull that boat without exceeding 1,000 engine RPM. Your speed will be quite slow however, maybe 10 MPH in 6th gear, so with the beauty being that any speed is fully selectable, you could also try to pull the boat out in stock High Range and our TacoBox engaged (4.70:1 overall t/case ratio) which we guarantee would also be very comfortable and easy for the engine to extract the boat. As for an approximation based purely on math, if your current requirement based on the load of the boat with your Tacoma in it's factory 2.57:1 low range is that 4,000 RPM is required to overcome torque converter stall, then with your factory t/case in High (1.00:1) and our TacoBox in Low (4.70:1), your truck will begin pulling the boat at 2,187 RPM (4000 * (4.7/2.57)), and also with both cases in Low + Low (12.08:1), your truck will begin pulling the boat at 851 RPM (4000 * (12.08/2.57)). Now you can see just how much more control you get with the Marlin Crawler TacoBox!
Update: We just noticed your truck is a manual which is AWESOME. The above applies to torque converter stall for our automatic friends. For a manual, the very same applies it's just that you no longer have to slip and ride your clutch. You simply engage the clutch at a slow and controlled sub-1,000 RPM (seriously) and the truck begins moving as if it was nearly idling in gear in a parking lot. You will feel like you could pull anything out from anywhere. The only limit becomes traction. Less revving, less fuel use, less bouncing and drivetrain load, and most importantly, nearly zero clutch slip. Get completely off the clutch and even at only 1,000 RPM you can be going 0.5 MPH (0.46 MPH with stock tires/gearing) with zero clutch use and full control and concentration on the boat. Cheers!
BigMike is running a prototype front IFS suspension (version 1.0) along with taller than stock rear leaf springs made by a company that is no longer in business. The entire setup will be changed and updated later this summer, with full details to be posted to BigMike's build thread located at www.marlincrawler.com/bm2. Thanks!
Thank you for the comment and sorry for the late replay! We now have a nice, short video of a 2nd gen Automatic Tacoma with our Dual Ultimate TacoBox demonstrating a high level of control in 3rd gear. Check it out: czcams.com/video/wFPCd9oVx7g/video.html Thanks!
Ah the video that made me 100% need a tacobox. Glad I have one! It’s just absolutely awesome in my 3rd gen 🤘🏻
I am sold so interesting back in the old days Northwest Offroad would put two transfer cases together this is obviously a superior engineered product can't thank you guys enough for all you do
Bought a tacobox last week and I’m watching these waiting til I can do that
I be impressed when it can climb the devils hot tub in moab.when we was there they had to be pulled out couldn't make it.i made it 3 times soon to be 4 this spring.
Did he just needed more speed?
Great video! Can you guys to a build walk around? What all has been done other than the MarlinCrawler? What does the truck look like in the inside (where is the extra lever). What size tires and and suspension has been done to fit that setup (including finders)?
Best video on the interweb. Great demo thank you.
Now if Toyota would release a diesel this would be the ultimate!
This is awesome nj, cool build. I am jk owner btw.
I wish I could put that in my 2008 sequoia!!!!
I’d like to see the shifter location and trim
Love what you guys do.those huge ass bead lock wheels are sick!!!
Nice video 👍I’m building a Jeep Wrangler yj with unimog 404 axles with 7,56 gear ratio ✅
I'd imagine this saves on gas while on the trails since you're less likely to Rev it for most of the trails
I would love to have a taco box for my first gen and give it a good test on these ohio/wv trails but I'm way to broke for that 😕 love the videos keep them coming 👍👍
Truly amazing
I want dual cases on my long travel truck!!!! For when I wanna go slow!!!
Hurry up and get the taco box back in stock! I need this in my life!
Great video
Wish we could see the stock wheels and tires on a taco box
No matter the gear ratio, if you don't have the right type of wheel/tire you won't be able to do much at all. You can't deflate the tires too much or else you'll risk popping them off the rim if you're on stock non-beadlock rims, and the thread isn't grippy at all so you're not going to find much traction.
@@oliviersavard8676 stock tires can 15psi with little to no beading issues. A clean set of stock tires are very sticky. You underestimating just how much of a difference gear ratios can do
Dream taco crawler right there.
What gear ratio are you running with 40s on your taco???
When are these going to be available again?
Awesome product. I want to get one for my taco 👍😎
I couldn't believe this was actually written on the screen and no one noticed the silliness of the statement. If you multiply whatever number by 83% you get less, not more as depicted. If fact, only 83% of the total! Was torque increased 83%? Impressive feature. I'd be concerned with thr increase length exacerbating driveline angles.
Hello SLFYSH, thank you for the comment. You're correct that it should say, "multiplies available TQ by 183%" or "adds to the available TQ by 83%", which is implied by the lower gear ratio. Will be sure to remember this for future videos! And yes, torque is increased by 83% which definitely is an impressive feature, thank you! :) The torque increase from low gearing is how Marlin created the Rock Crawling industry which is thriving to this day. If you think +83% is crazy, then please see another video we posted which shows this truck demonstrating a torque increase of +972% (10.72-times more torque, or a multiplication of 1,072%): czcams.com/video/kYWyJoV2o6U/video.html
As for driveline angles, keep in mind that Toyota trucks and SUVs all have over a 100 inch wheel base so shortening the rear drive line 8- to 10-inches has a minimal effect. Furthermore, on 120-inch or longer wheelbases like the one shown in this video, a Dual Case TacoBox does not cause any change to drive line angles as the front shaft is lengthened from the horizontally-mounted front differential (angle unchanged) as well as the rear intermediate shaft being shortened before the horizontally-mounted rear drive line carrier bearing (angle unchanged). For additional reference, Toyota rear drive lines are typically in the 40 to 50-inch range compared to older Jeeps and 40-series Toyota Land Cruisers with engine and drive train conversions having some rear drive shafts we've seen as short as even 13-inches (yoke > slip joint > yoke)!
@@MarlinCrawlerMedia thanks. Multiplies is not the same as adds, but the capability is very attractive. What a demonstrative difference it makes!
A taco box sounds like something you'd order at the drive thru, only in this truck your order would be waiting for you.
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I sure would like to have one of these in my ZR2.
So sick
Any products for the Tundra with the 5.7?
What's in the boxes in the bed?
Have you guys branched out and made these transfer cases for GM vehicles? 97 GMC Yukon 4x4.
Please let me know!
how does those super low ratios do against mud? does it keep you from digging holes?
How does the TacoBox do on the highway? Would you put it in 2 high? Is there any restriction to speeds in 2 high?
Hello Kyle, and thank you for the question! The TacoBox is based on our time-proven design from 1994 to be 100% reliable for daily driving, highway driving, and towing. This is due to the high range of the TacoBox being a 1.00:1 direct-through design. So long as you maintain a normal gear oil level, it will safely take you out and back home each and every day. Even with Triple Transfer Case setups, such as Marlin's famous red 1980 Crawler Truck (Triple Cased since 1996), BigMike's two-tone 1981 Rock Crawler (Triple Cased since 2004), and BigMike's white 2016 Tacoma shown above, where we have an extra Crawl Box which makes the setup twice as susceptible to failure of any kind, we have without question proven our Dual Case setups to be 100% safe and reliable for all highway use.
Exhibit A: Take a look at the impressive list of States Marlin has driven (not trailered) his famous red 1980 Crawler Truck to, all with a Triple Marlin Crawler T/Case setup meaning twice the number of components and twice the chance of something to go wrong: board.marlincrawler.com/index.php?topic=71545 The truck has in fact been driven to TN and back to CA three times all with our transfer case products.
Exhibit B: Take a look at BigMike's recent Live! trip report in this same white 2016 Tacoma with 40" tires and our Triple Marlin Crawler TacoBox setup on a 3,500-mile journey to an event in Texas: www.tacomaworld.com/threads/lone-star-toyota-jamboree-live-2018.547019/ In fact BigMike's Tacoma averaged just over 17 MPG with 40" tires!!
Exhibit C: Lastly, here is BigMike's Triple Cased 1981, which has we believe close to 100,000 highway miles on our Triple Marlin Crawler Transfer Case system with zero issues and still going strong: www.marlincrawler.com/bm
As for the TacoBox's Daily Driver pedigree, it is now enjoying year 17 of reliable daily driven use by drivers of all kinds-Tacoma/4Runner/T100/FJ C/Tundra-since 2001!
Side note: A Triple Case setup is absolutely not needed nor recommended for the average user because it is grossly overkill and fewer than 1% of our customers run Triples. Marlin and BigMike run Triples in all their trucks because it enables them to showcase every single gear option that we sell making it the perfect product demonstration platform for our company and marketing needs.
We forgot to address your question regarding speed restrictions. Practically speaking, there are no highway speed restrictions to any of our Transfer Case products including the TacoBox.
Technically speaking, as discussed near the bottom of this 2007 document BigMike wrote, www.marlincrawler.com/docs/mc07/index.htm#rpm, he calculated the maximum vehicle speed as limited by our exclusive and world's strongest Toyota Dual Case output shaft bearing's maximum RPM to be 141 MPH in a 5-speed truck with 37" tires and 5.29:1 R&P.
So if you can exceed about 141 MPH with our TacoBox in high range then we are sorry but we cannot guarantee the reliability of our bearings! :-D ;-)
Thanks again Kyle, and we hope this proves to show just how sound and reliable all of our Transfer Case products are!
Another side note: To prove the trail use reliability of our T/Case products other than the fact we have a quarter of a century of thousands upon thousands in use currently around the world (we have many people still trail-running and daily driving even our very first design from 1994 still to this day), our Maximum Capacity Double-roll bearing-equipped Dual Case setups (which includes the bearing used in our TacoBox) has survived the most number for Toyota-based Dual Case setup King Of The Hammers main event at nearly a dozen finishes, more than 6-time Rock Crawling National Championships, and more than 3-time Xtreme Rock Racing Association abuse. Our Maximum Capacity Bearing Design is also used in our Heavy Duty Race Transmissions, which have completed the NORRA BAJA 1000 multiple times, many 300-500 mile desert race competitions, as well as many National Drift Competitions in very high powered Nissan and Supra Drift Race Cars. These events specifically, the King Of The Hammers, Desert Racing, and Drifting, put an extremely high level of torque loading, sudden impact loading, and rapid drive-to-coast axial torque loading, and the Marlin Crawler Transfer Case and Maximum Bearing Design we use has been proven reliable for many, many years!
MarlinCrawlerMedia thank you for the detailed info!!
So how easily would i break CV axles running a marlin on a 3rd gen 4runner? Do i need to do a solid axle swap to make proper use?
Damn! I’d love to have this on my 07 Toyota Sienna AWD. But, it’s awd. How long am I going to have to wait until you folks make it available for awd? Please don’t tell me it’s not impossible! I know damn well it is.
Compare to crawl control
Maybe this is why they invented automatic transmission
Is there any chance that the Marlin crawler RCLT can be fitted or made for a 2018 toyota tundra?
how much one taco box for toyota pick up 89 from shipping mexico
Do you have to worry about CVs or any other parts stressing with the increased torque? Thanks
It's less stress .............
What year tacoma is that
Is there any box for toyota revo or land cruiser 70/80 series?
Iv seen a few of your videos, I'm curious why you put so much emphasis on open diffs while crawling as opposed to just locking them and making short work of the obstacles.? Also, keeping the diffs locked on decent would seem to be a safer option then leaving your tires slip and grab traction. For an untrained wheeler I can see this escalate quickly if picking up speed while slipping down hill. Jmo.
Hello, BigMike here and thank you for your comment HNO. Probably the best way to explain this is that when Marlin began wheeling his now-famous 1980 red Toyota pickup back in the early '80s, he was grossly out numbered by Jeeps and Land Cruisers. He could go an entire week of wheel'n without seeing a single fellow mini-truck owner on the trail. Therefore, he carried nearly every spare part under the sun in the back of his long bed which is in part where his reputation of helping and assisting so many vehicles on the trail came from. For example, before he popularized the concept of Rock Crawling, he was a pioneer with on-board/under-the-hood welders and for more than a decade and a half was often the only truck on the trail with a welder (he created his own welder using both Ford and GM alternators long before there were any commercial products for Toyota's). If his little pick-up broke down, he didn't have the luxury of another pick-up with spares randomly showing up, so he made sure to take care of himself as well as his truck.
Marlin has taken us all under his wings and taught us how to drive off-road, and he always tells us to "drive accordingly", meaning if you have stock axles then you better "drive accordingly" and not allow the truck to bounce while on the throttle.
It is this mentality that has taught us to reduce as much stress, strain, and load on the truck as a whole which means if you do not actively need lockers, then do not put your axles and tires in a bind by having them fight one another while cornering or having one tire pulling hard and unevenly/criss-cross loading the suspension across the vehicle frame. The key concept Marlin always preaches is, "You should never use your lockers unless you have to." There are exceptions, such as if you're in the snow, or as you mentioned a steep loose descent, or on a sidehill with roll-over risk and need maximum control, then yes, he would suggest using lockers. But once you get past that spot he would recommend immediately unlocking to extend the life of all components.
On top of this, it is just dang cool to say that you can climb up something without using lockers because of the fact you had such low gearing from your Marlin Crawler t/case that you were able to leverage slow traction rather than flooring it with both lockers on just to get up something. We find a lot of pride and sense of accomplishment to be able to say that you did something with our extremely low gearing without needing lockers. :-)
Funny but I was thinking exactly what you replied. Lockers are never to be used full time. They were never even invented to be full time but more so as a tool to help you get past a certain obstacle. You can always tell good wheelers from the bad just by how they use and treat the rig. I like the slow and steady approach and many times people would save a lot of damage if they just took it easy a tad more. I'll be looking into this crawler box when time comes as I can see it as just another tool / weapon in the arsenal.
Great job on the video and explanation.
Very impressive. Two questions: why was the truck difficult to start again when he stalled it first try and are you able to run front and rear lockers in conjunction with the taco box?
Hello LitoGeorge, BigMike here. Thank you for your comment. I do not have an exact answer to your first question but here is what I do know. The fuel injected Toyota engines I have Rock Crawling experience with are the 2.4-liter 22R-E Hilux 4cyl, the 2.7-liter 3RZ-FE Tacoma 4cyl, the 3.4-liter 5VZ-FE Tacoma 6cyl, and the 3.5-liter 2GR-FKS Tacoma 6cyl (the one shown in this video). Only the first engine on this list is OBD-I and only the first engine on this list will fire right up after stalling under full throttle. I do not personally know why 1995 and newer Toyota truck engines have a longer crank duration after being flooded out under a full throttle stall, but they do.
The few things that come to mind are that these newer OBD-II engines have separate crank and cam angle sensors that the 22R-E does not (it only has a sensor in the distributor), and that the newer engines are supposed to have a different starting mode when the clutch start cancel switch is enabled. The last point must be mute because as Marlin has taught us all, we should always use the clutch start cancel switch whenever starting a stick shift engine (to reduce the load on the crankshaft thrust bearings when there is no oil pressure present) and in this video I had the switch engaged which I always do regardless of off-roading or city driving (it's a lifetime habit of mine).
So even if the argument could be made that using the start clutch cancel switch improves start time while in low range, this is not true for any OBD-II Toyota truck engine I have Rock Crawled with. Toyota has simply designed them to crank and crank when they are flooded.
For your second question, Yes, the TacoBox is fully mechanical and does not cause any interference with any electrical or otherwise mechanical system or operation of the vehicle. Factory TRD E-Locker will function 100% like factory regardless if the TacoBox is engaged or disengaged. For my truck it is impossible to have gotten it with an E-Locker (Toyota does not offer it in a 6cyl AccessCab in the United States) (this was a big factor in why it took 8-dealers 261-days to finally get this truck built -- see my build thread for details, www.marlincrawler.com/bm2) so the only other alternative for a selectable rear locker was the ARB. Knowing that I would unfortunately also have to use an ARB in the front (since Toyota does not offer a front E-Locker which I would strongly prefer), it was only natural to also get one for the rear.
Having said all this, the ARB is installed into the vehicle and like the TacoBox is not related to any factory systems. So with the ARB the prerogative is yours should you want to enable them or not at any time on the trail and for any reason. Side note: The ARB comes with its wiring configured for the rear locker to be engaged before the front (for component strength concerns) and the first thing I did was modify this so I can engage the front without the rear (for vastly superior vehicle control over the entire system, especially when cornering on high traction surface such as granite).
Please let me know if you have any other questions and Happy Crawl'n!
Hi Big Mike, terrific set of answers to my questions, thank you. Interesting info all around, and good to learn about the ARB default settings. I'm keeping you in mind for when I need something like this in the hopeful near future. Saved permanently. Until then, take care. G
do you have a TacoBox for the present model of Toyota Hilux?
As the transfer case and gearbox is the same on both the Hilux and Tacoma (with minor internal differences) it should fit just fine.
Does the taco box have the 4.7 gear in it?
10-4 👍🏼
Nice video! Is there any way to use this system on JKU / JLU Jeep Wranglers? Or do you have any plans to make something Jeep compatible?
gooddude744 my understanding is that Jeep's wheelbase is too short and you can't stack dual transfers like how you can with toyota transfers.
Jshift4Lo can you swap out the factory transfer case for the Taco box?
Look into an Atlas transfer case
you can do dualbers in jku's xj 2drs xj 4drs tj's grandcherokees you guys are a bunch of idiots
rubacrawler is basically the same and cheaper than an atlas
My 2016 Taco trd or manual struggles to pull my friends boat out of the water. It just sits there until the rpm hits 3.5 to 4K and then it will begin to pull the boat out of the water. Will the Taco box help with the overall torque n pull the boat instantly.
Hello and thank you for your comment. Because the TacoBox is fitted after your torque converter, it reduces the perceived load by either 2.28 or 4.70-times less (our two different gear ratios offered). In the case of our 4.70:1 (by far our most commonly sold ratio), imagine your truck weighing 4.7-times less, the boat 4.7-times less, the slope 4.7-times less severe, and gravity 4.7-times weaker.
Keep in mind that you get two new low range speeds with the TacoBox. From the factory, your transfer case is a two speed: High (1:1) and Low (2.57:1). With the TacoBox, it becomes a four speed: High (stock 1:1), Low (stock 2.57:1), High+TacoBox Low (single TacoBox 4.70:1), and finally what we call the Dual Ultimate which is T/Case in Low (2.57:1) + TacoBox in Low (4.70:1) which is 12.08:1 compound low range ratio. So you can select from three different 4WD speeds to pull your friend's boat: Stock, Single Case TacoBox, or Dual Case TacoBox. Single Case TacoBox, being 4.70:1, is 1.8-times slower than stock, and Dual Case mode is 4.7-times slower than stock.
We don't know the situation from our keyboard, but we are certain that with both your stock Low Range and our TacoBox engaged (12.08:1 overall t/case ratio) you'd be able to pull that boat without exceeding 1,000 engine RPM. Your speed will be quite slow however, maybe 10 MPH in 6th gear, so with the beauty being that any speed is fully selectable, you could also try to pull the boat out in stock High Range and our TacoBox engaged (4.70:1 overall t/case ratio) which we guarantee would also be very comfortable and easy for the engine to extract the boat.
As for an approximation based purely on math, if your current requirement based on the load of the boat with your Tacoma in it's factory 2.57:1 low range is that 4,000 RPM is required to overcome torque converter stall, then with your factory t/case in High (1.00:1) and our TacoBox in Low (4.70:1), your truck will begin pulling the boat at 2,187 RPM (4000 * (4.7/2.57)), and also with both cases in Low + Low (12.08:1), your truck will begin pulling the boat at 851 RPM (4000 * (12.08/2.57)). Now you can see just how much more control you get with the Marlin Crawler TacoBox!
Update: We just noticed your truck is a manual which is AWESOME. The above applies to torque converter stall for our automatic friends. For a manual, the very same applies it's just that you no longer have to slip and ride your clutch. You simply engage the clutch at a slow and controlled sub-1,000 RPM (seriously) and the truck begins moving as if it was nearly idling in gear in a parking lot. You will feel like you could pull anything out from anywhere. The only limit becomes traction. Less revving, less fuel use, less bouncing and drivetrain load, and most importantly, nearly zero clutch slip. Get completely off the clutch and even at only 1,000 RPM you can be going 0.5 MPH (0.46 MPH with stock tires/gearing) with zero clutch use and full control and concentration on the boat. Cheers!
What's your suspension setup?
BigMike is running a prototype front IFS suspension (version 1.0) along with taller than stock rear leaf springs made by a company that is no longer in business. The entire setup will be changed and updated later this summer, with full details to be posted to BigMike's build thread located at www.marlincrawler.com/bm2. Thanks!
I think I know what my wife is getting me for a 10th wedding anniversary gift😁
Next upgrade, ditch ifs.
Honestly it's nice to see someone taking a different approach to long travel rock crawling suspension. Their IFS setup is pretty legit.
Can the taco box be applied to an auto? Have a 2018 I would be interested in doing this to.
Yes
Thank you for the comment and sorry for the late replay! We now have a nice, short video of a 2nd gen Automatic Tacoma with our Dual Ultimate TacoBox demonstrating a high level of control in 3rd gear. Check it out: czcams.com/video/wFPCd9oVx7g/video.html Thanks!
This available for 1st gen Tundra 4.7?
Yes it is! We have customers with Dual Cased 8cyl Tundras out on the trails!
Is this stock diff gears
I miss my Toyota
Toyota sucks making great off road trucks today, compared to Toyota trucks in the 80's and 90's.
watch umimog,super crawl.
Shut up...
And take my money.