RAM 2500 Power Wagon Off-road 4WD | LIMITED SLIP DIFF Vs. LOCKING DIFF
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- čas přidán 30. 06. 2024
- In my 2022 4wd RAM 2500 Power Wagon I explain and show the difference between a Limited Slip differential and Locking differential. A limited slip' off road performance is not as good as a locking diff. I show you why a locking diff is far better off road when I take my truck up a slippery snowy 4x4 hill and compare the limited slip against the locking diff and you can see its far better off road then the Limited slip.
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Happy new years to everyone! I hope you guys had a great holiday and I can't wait to start off this year with more cool content.
Today I wanted to shed some light on open differential, limited slip differentials and finally locking differentials. I feel like most 4x4 owners are not that aware of the important of each differential and how they can each affect your off-road performance and on-road performance. as I mentioned in the video I ALWAYS get comments about folks believing 4x4 means that all 4 wheels are going to be locked and getting power and that couldn't be farther from the truth. the only way to have all 4 wheels locked together is to have a locking transfer case and two locking differentials.
A limited slip differential is like a hybrid between an open diff and a locking diff. it always for great on-road drivability and still allows for some off-road capability. often times however a limited slip can still be very limiting in an off-road situation and can leave you stuck. the best thing for off-road is a locking diff which will split power to both wheels no matter what. but a locking diff on-road is horrible to drive with.
the other thing that kind of drives me crazy is when I hear people mention 4wd low as this miracle option that magically locks everything up. And that's just not true, 4wd low is simply just a speed range is does nothing to change your driveline or how your engine power is distributed to each wheel. Yes 4wd low is a handy tool off-road because when in that low range is allows more torque and control to be applied to your wheels. so it is handy but it does not locking up anything.
finally I take the ram power wagon to a little snowy hill and test out the limited slip vs locking diff in the real world to show you guys how much a difference a locking diff can make. to me is was pretty night and day when the locker was engaged and I'm happy that I now have alot more off-road ability! - Auta a dopravní prostředky
Another note on the torsion LSDs, I see someone already pointed out that they need some resistance on each wheel to work. They also need wheel speed to work, the more wheel speed the more the limited slip engages, so if you do redo this test give it more pedal when the wheels start slipping and it will work better.
Don't get me wrong though, great video, you gave a good explanation comparing limited slip/lockers and lockers will always win the day in the end.
I remember my dad owning a 65 international pickup with a unique rear differential. He would fill the 8 foot box with one layer of concrete blocks covered by plywood. One weel would spin for a few seconds and then the other. They just kept going back and forth similar to trac control on some newer cars today.
Yes exactly limited slip engages only when accelerator pedal is pressed even little bid definitely works better in every day driving situation,
for off road lockers are superior.
Doesn't applying the brake help with the torsen?
Torsen…not torsion.
torsen diff is a 50/50 split, provided the friction coefficient is equal(which is basically never). With torsen diffs you can drag the brake to transfer some power to the slipping wheel.
Cool demonstrational video. I already know how lockers work but its nice to see it work in real world experiences. I enjoy watching these kinds of videos. Happy new years.
Thank sir! happy new years!
Only 4wd if the tires are on the ground, that's what i tell people. A limited slip differential resists speed difference between left to right, or if center diff, front to back. Typical viscous coupling tries to keep the slip down with plates swimming through thick viscous fluid. Torsen/ helical resist slip by friction of the gears against the diff housing. Mechanical clutch LSD that are labeled as 1way, 2way, 1.5way mechanically have pressure rings that clamps the clutch plates and force the side gears to rotate with the housing. Some other clutch style just uses clutch plates to resist slip, some apply a little pressure because of the beveled side gears and pinion gears.
Now mechanical brake assist traction control via the ABS system applies the brakes to the spinning tire, thus the differential has to spin up the other side. There are limitations because of how the manufacturers program the braking amount and how long it holds before letting go. I've seen some system that just slow it down enough and let's go. Some others are more aggressive and use the brakes to hold the spinning tire until the other tire moves forward before letting go.
It just gets me when people say, the system is "looking for traction." The system can't tell how much traction you have, it's only programmed to see a spinning tire, apply brakes to that corner and wait for signal from other wheel speed sensors. A lot of silly marketing terms. Give me low range, lockers, good suspension travel and I'm good. I don't need any gimmicks.
Thanks for the videos of your new Power Wagon. I'm enjoying yours while waiting for mine that I ordered a couple weeks ago.
It's gonna be awesome. I haven't missed many gas stations but its a great truck
Thanks Alex, good job explaining the diff sys on you new rig. Happy new year, cheers
Happy new years! thank you, just so much cool stuff to talk about on this truck!
My 2021 Ram 1500 bighorn came with the off-road group. So it has a rear e-locker. Love it.
Great vid! Thank you for taking the time to show us cool stuff about our PWs
You bet!
Excellent video!! And I mean excellent, thank you for taking your time and explaining the difference
great info and video. love the truck
Your not off roading till you rip that front license plate bracket off the front bumper lol. Trust me u will. Not sure if you have or not but you should set the winch up also. Do a video of it. Great seeing another power wagon in action keep up the good vids 👍🏻
Thank you sir! I honestly have zero knowledge about the winch. Like I messed around with it a couple times and pull the truck around in the snow but is there a procedure on how to set it up or does it come ready to rock from factory ?
You can keep the front plate on and make it through moab, if you can drive. Ask me how I know. 🤔
Simple & Easy Demonstration for newbies like me. Thanks!
The best videos don’t go as planned. Which makes it actually really interesting.
Enjoyed your video and very nice truck, I've got a landrover defender with a detroit locker in the back axle and a detroit truetrac in the front and it performes brilliantly. I've had them fitted for about 15 years and not a moments trouble, Air lockers are too expensive and too much hassle to fit, detroit/Eaton lockers and truetrac have served me very well I can't rate them highly enough. Look forward to seeing more of your videos 👍👍👍👍👍 from Jason in Wakefield Yorkshire in England.
Great and informative vid on the explaination of limited and 4x4👍👍🤩❗
Definitely do the mod to get lockers in 2 hi or 4 hi. 2 hi was actually pretty nice.
Thanks for the video and AWESOME truck!! One quirk to a torsen is that both wheels need at least some resistance for the limited slip to work, so lifting one wheel off the ground will not typically transfer any torque to the wheel with traction. The work around on that is to lightly feather or apply the vehicle’s brake, thereby “tricking” the differential into transferring torque. I know the torque bias ratio in the factory Ram torsen is not very aggressive, but even my much more aggressive Eaton Truetrac won’t engage with a lifted wheel unless I apply a little brake. As soon as that happens, it grabs like an actual locker. The military hummers are the same way. Maybe something fun to try if you ever do the test again, but you also have two legit lockers, so idk.
Thanks again for the videos and happy new year!
Was just going to say the same. Some modern vehicles have the ability to "torque vector" with their brakes, and in such situations can act similar to what you said about dragging the brakes to help provide some resistance. But yeah what you said is spot on, and great video too!
I'll have to redo this test anyways seeing as it didnt even go as planned lol. I'll probably do it differently but yes I guess the torsen style LSD need some resistance to work. Despite the thumbnail I actually really enjoy having one in the rear. it's great on road especially when it gets snowy! Thanks for the info sir
Very cool. We’d love to see it!
@@TheGettyAdventures definitely want to see the remake video! Love your channel for this very reason. Not many channels actually test and show the difference in limited slip diffs (clutch type or helical), lockers, 4wd operation, etc.
I came here just to make this comment but you've already explained it perfectly. 😎👍🏻
Limited Slip is a Torque Multipier, with they amount of bias determining the multiplication (with 3 being common, so when a wheel in snow slips a bit, then the other wheel gets triple the torque required to slip the first wheel).
If it takes 0 torque to spin a wheel, as is the case with a wheel in the air, then 3 x 0 equals 0 so the other wheel gets nothing. Lightly press the brake, and if it takes 100 ft\lbs to overcome the brake, then suddenly the other wheel gets 3 x 100 = 300 ft\lbs. the main drawback is you are now riding the brake, which will cook them just like going down a steep elevation.
I don't know many modern trucks / SUVS that don't have LSD, via the ABS controller. Most manufacturers don't use physical LS differentials anymore because you can do the same with the ABS controller by only applying brake force to the spinning wheel thus transferring power to the other. Some brands are better than others with the aggressiveness of the brake force applied. Using Limited slip ABS is much cheaper, can be more effective, and less components to fail.
I can tell you right now from experience that the lsd is better in deep snow. The 4 low locked is rpm or throttle Governed. The limiter was how I got stuck to begin with. Once I unlocked and used 4 high no lockers the 6.4 was a monster!
your probably not wrong. I was thinking like 4high with the rear locked would be best in deep snow. It takes so long to unhook the diffs I figured the truck would have a hard time keeping the wheels speed below 10mph. But I could be wrong
@@TheGettyAdventures heres some advice, get bigger sidewalls, taller tires, air down to 13 psi. should be 10 ply tires. or what ever you like.. i go 10 psi on sand mud. no beed locks..35", minimum, 36 better. kills gearing though. i have 35,s on the s/duty, still crawls stupid slow..zf 5 sp..granny 1st, std.
The purpose of four low is to give you increased leverage of the engine on the tires and to increase your control of driving with your throttle. Four highs for driving on snow covered streets and dirt roads for low is for actual situations where there's massive traction issues where you need all you can get
Awesome video thanks for posting l!
great demonstration
I have driven in all types of terrain. True lockers break things and ride rough. Gears type LSD's are prefered, and a little brake drag engages the system rather smoothly. Experienced drivers get the same traction with an open diff by skilled use of the brake.
When electric drive 4wd becomes available. That is each wheel has a drive motor. People will then experience a seamless continuous 4wd.
What really confuses most people is traction, or wheel spining effects. A gear type differential will just provide smoother operation. A locker will knock you around. And a cheap skate country guy will just drag the brakes to get through. It would be interesting to do these traction experiments with one of those Icelandic snow trekking vehicles.
I've never seen a limited slip differential that can also lock. Is this one of those limited slip differentials that use computer braking to change torque flow from the wheel thats spinning?
It has real helical gears for mechanical torque biasing and then a true electric differential lock. American Axle makes it (TracRite GTL) and the Power Wagon rear is the only applications they currently make the GTL for. Auburn Gear also makes a differential for a couple applications that combines a clutch-type limited slip with an electric differential lock.
A locker can send 100% torque to a single wheel.
A clutch type limited slip is basically an open diff with friction clutches that limits difference in wheel speed and transfers torque to the other side with traction. Most people don't realize you have to spin the wheel faster to get it to transfer torque to the other side.
A torsen limited slip multiplies torque, and requires resistance on the low traction side to multiply that torque to the high traction side. If the torsen has say a 4:1 ratio, and a tire on ice can put 10lb/ft of torque to the ground, the torsen can multiply that and send 40lb/ft of torque to the ground on the other side with traction. If a tire is in the air it can send 0 lb/ft to the ground, so 4 times 0 is still 0. If you apply the brake though, the torsen will multiply the torque required to overcome the brake and send it to the other side with traction.
An open diff ALWAYS puts the same amount of torque TO THE GROUND on both sides. So if one wheel is on ice and can put 10lb/ft of torque to the ground, then the other side can put 10lb/ft of torque to the ground. If one wheel is in the air, it can put 0 lb/ft of torque to the ground, so the other side also puts 0 lb/ft of torque to the ground. It will always apply equal torque to the ground on both sides.
With the helical pumpkin if you want it to lock up you apply a little bit of brake force and it will engage.
Haven’t had to use my locker yet. I’d love to go on an off road course, but so far I’ve only found ones that are suited for quads and dirt bikes.
there are a few trails here and there for me but Haven't actually had to lock anything up on purpose let. But I love knowing they are there if I need them
So, on a factory Rebel, if you don't engage the electronic locker, does it mean that it has a limited slip rear of you don't engage the locker? My thinking woukd be that you have an open rear diff, not limited slip. Then, when you electronically lock it, it becomes a rear locker, almost like a spool. But, until it is locked, I would not think that it has limited slip from the factory.
It's either open or locked if it's a locker. If it's automatic, the computer engages the locker when it detects slippage from the wheels.
I know on my Dodge it has a mechanical locker. It works best if you pre load the torque and don't let off until you get over the obstacles.
Good information
Is locker a factory option on these trucks or is it aftermarket installed? Is there an option for the front axle locker as well?
So question.
Based on what you said, can one add a locking differential to a 4x4 truck?
Also don’t forget to disable the traction control. Someone else did the same video and forgot about that! :)
I have a 2020 PW as well and I didn’t know it had that screen for the locking diff, probably because I have yet to have a need to lock the diffs :-)
If you're off roading sure a locker's gonna work better.
But if you're in 2 wheel drive and you have a 2500 which doesn't have an auto 4 wheel drive the anti slip axle is really good it gives you some traction before you have to put it in to 4 wheels drive.
Same with the 1500 If you're in 2 wheel drive and you hit something slippery on the highway did anti slip might give you better attraction.
I didn't think the locker has anti slip also.
Hey, I’m a Guelph gryphon. 1st year!!
On a limited slio,ot sometimes takes more RPM to get the other tire to spin. I would suggest giving the truck more RPM for a longer period of time. The results will probably be different. It should be a 50/50 torque split in a two wheel drive truck. With four wheel drive and the transfer case engaged, it wiukd be 25 percent to each wheel, as stated.
Can you do a video showing how to turn off the ESC?
What you are calling limited slip is ABLS which is not true mechanical limited slip. A true LSD will hook up both rear wheels if it is tuned correctly with good clutch packs or a torsen diff. I have a 93 Bronco with a Ford Performance T2 Torsen in the rear and it has never failed to hook up. I have an 89 ranger that I was lucky enough to find a trac lol for the front dana 27, and the rear 7.5 trac lok. I packed the ranger with a fresh set of clutches in both axles and it will move with ease through mud or snow. Lockers are preferred, but Detroit lockers will send you sideways if your tire pressure is different in the rear end.
Your lsd is differential or system through brakes? And if it is differential what is the name of it?
Just put rear locker on a two wheel drive and you would be surprised how well it works.
good vedio, but you didn't give the lsd any chance!.. it needs just a little bit of throttle, lsd usually need to see A SOILD RPM difference between the two wheels in order to engage. Nice truck btw 👍👍
100% I just want to show that there is a difference between an LSD and a Locker. alot of guys were saying that so I'm gonna re-think and re-do this test to really give the LSD a chance!
Also don’t forget to to disable abs ( pull fuse or get bypass switch) or the Nannie’s comeback absolutely federal mandate safety that is actually unsafe if you don’t know how
Another good PW video
thank you sir!
Imma Ford truck guy but you have a really nice rig there.
I wonder how Eaton g80 is better or worse compared to power wagon. Also Nissan pro 4x has the same locker or no ? Because I don’t see locking on the dash board
Did you say your truck has a lid as well as a locker? If so how is this achieved? Assuming you meant the rear end
On non PW models if you turn the traction control nannys off though still not a locked diff there's less wheel spin when articulating the axles Engine Adventures did a video on a 2020 2500 Laramie 4x4 6.4
stupid nanny controls lol but that's interesting I wonder why that would be the case! I'll have to check out his video
cool truck
Thanks man
happy you liked it!
@@TheGettyAdventures Yes sir I like this stuff thx I’m getting the Warlock soon with the 5.7 not enough bank for a PW lol
@@titogonzalez8012 still a great truck. I had a 2017 ram 1500 big horn and loved it. those 5.7's are wonderful to have, fast and surprisingly fuel efficient
I think you need more thrust. My Jeep has LSD and it works great. I like it more then locker cause it's always on.
When I was in the country few days ago. Some guy went into ditch with that same truck you have. I drove my truck into ditch and pulled him out with my gm truck and its only 1500. But even my truck is limit slip. Just gotta send it. You can fix anything I bet
If someone with a power wagon couldn't get out of a ditch that's concerning. the ONLY excuse would be if he was buried up to the doors in snow or mud and there was no trees around. like the truck has a winch on it lol
but yes limited slips are not bad at all. they work great in most situations but I figured I would just show the difference between a locker and a LSD.
I believe a good brake actuated limited slip or abls would be better especially if you have lockers on top of that. Not talking about traction control.
What is your gear ratio? I’ve seen these come with 410’s and 373’s
If it is equipped with 410’s what is your fuel mileage highway/ city
My PW has 4.10 gears, and gets 9 mpg in town and 14 mpg on the highway. Towed a 3900 lb Mustang on a Flatbed for 150 miles and got 11 mpg.
I thought an LSD was torque controlled, other wise cruising around corners would cause power slides. The point is that it must serve as an open diff in normal driving conditions. It would have been interesting to see if you applied low range with higher RPM (more torque). My guess is the LSD would kick in nicely.
The power wagon has an open diff until it is locked. No matter what you have read that is how it is explained at the ram trucks events. They demonstrate the exact things you are doing kind of. Anyways it’s open until you lock it. I was at the chicago auto show last year and at the ram booth they show this in action etc.. they also had a ram 1500 with their anti spin diff option and it kicks the other tire in in about 1/2 a second when it is needed. Further proof to show the power wagon is open until locked and the anti spin diff actually works really
Good.
well actually no. the PW has the 11.5 AAM diff which is a helical LSD and obviously can be fully locked. the problem with helical LSD diffs is that if one wheel is fully off the ground it does not work. which is what we saw here. here is a link to another video of mine and it shows the LSD kicking in just like the anti spin. the helical LSD in these trucks is not as aggressive so it takes more torque to be transferred but you'll see it work.
czcams.com/video/dl4OCYZE_XY/video.html
@@TheGettyAdventures I didn’t say it couldn’t be locked.. of course it can be locked it’s a power wagon, what I’m saying is that when you don’t have it locked it is NOT a limited slip. It is just a standard open diff. Which is trash. When it’s locked then yeah it’s locked. If you buy a ram and option the Anti spin differential then that is how you get the limited slip. There is no way to get a power wagon with both the limited slip and the locker. It is open or locked that’s it. Like I said I am 125% sure as one of the head ram development team
For powertrain told me at the auto show.
Is it possible to install a rear locker on a conventional 2wd axle?
Repeat but allow the wheel without traction to spin 100+ RPM - will it lock up then?
Looking at Ram website, I see anti spin rear option for 4X4 Larmie. Are the options this OR elocker? I don't see any locker option, is that standard when I don't select the anti spin?
Edit: Ram 2500 w 6.4L
That's interesting, I when I was talking with the dealer he mentioned that you could order a locking rear end for most 2500's.
I have a 2019 Ram. I would love to have a Power Wagon. $$,$$$
Yes trust me I know all about the $$$, especially at the gas station lol
Alex! Man this is terable!! Lol your gonna get me in trouble with my wife!! Each minute I watch is closer to me pulling the trigger! Of getting rid of the Warlock for the Power Wagon!!!
Haha hey the warlock is a great truck. those classics are worth their weight in gold. But I remember telling my girlfriend I was "just going to look" at this power wagon. and here we are like 4 weeks later lmaoo 😂
Awesome videos, very informative and entertaining on the PW 🥰🤩😘
Great video,makes me wish I could afford lockers,can lockers be driven at highway speeds on snowy roads?
No they can't, well I'm sure they technically could but you'd be putting a lot of stress and wear on your driveline. Honestly a LSD is great on snowy roads. much much better then an open diff and it's seamless with no wear on your driveline at higher speeds.
but lockers are great to have when you really get into some deep shit.
@@TheGettyAdventures thank you for the advice . Much appreciated
Yes you can. Newer trucks with factory lockers will shut them off around 25mph. This guy knows nothing. If you install a locker aftermarket you can run it at any speed. Not that you want too
Dodge uses sure grip not limited slip.
The problems I have seen in your videos with LSD is that you don't get on the throttle enough to put sufficient torque to get the wheel with traction to spin.
your truck does not have a limited slip and e-locker. Auburn is the only manufacturer that makes a selectable locker with limited slip and full locker but it's only up to a dana 44 equivalent. Being a Ram 2500, this is impossible.
A detroit truetrac would have performed just as good as your detroit e locker in this particular test.
They both have their strength and weaknesses. a locker can be dangerous as it will make the vehicle pull sideways. truetrac will have equal traction until theres too much of a difference. However if you know how to use a truetrac, there are ways to get it to put power to both wheels if one side is off the ground or on ice
Is that a shock in between the diff underneath the truck
Yes
The GMC AT4X 2500 HD Doesn't Have FRONT LOCKERS...
Does The Ram 2500?🤔
Id Go With The 1500 AT4X That comes With Front And Rear Lockers...But the Payload isn't high enough for a camper.. so Going HD(Gas) Probably The Way To Go Buy Want Front Lockers... Easier To Hit The Ground Running If I Can Get it stock...
If So I Guess I'd Have To Check Out A Ram Then🤔🤷
By the way. Awesome truck!!! Just curious how you think your other truck would’ve done on that hill. And possibly you tried it??? Very curious because I have a 2013 ram 1500. Regular cab. 4 wd. With TWO open diffs!!!!! Wondering how you think a truck equipped as mine , and your old truck would do???? I really can’t understand why ram would even make a 4wd with two open diffs. Maybe front open, limited slip in rear. I dunno what they were thinking. Watched many of your other trucks videos and it still done well with the two open diffs. I have had mine about three months now and love the truck. Haven’t taken it off-road yet, but will very soon. I’m east coast USA, here. Mainly sand. Your thoughts on open diffs in sand?? Know your mainly snow and mud. Just get your thoughts???
Open diff 1500 here myself, if you just need a 4x4 to live and use your truck for truck things you’ll be fine with good tires. I survived fine last year on stretched street tires on trips to northern wi which included driving on plowed trails/roads during blizzard conditions and to the mountains in North Carolina for snowboarding driving on untreated switchbacks. If you need a true off road vehicle though your open diffs will leave you longing for a winch for sure.
@@michaelgregory7457 thanks Michael, pretty much I got a truck for truck things. Just was curious, live close to a place called freeman park and they allow driving on the beach. Most anything I do will be in sand. Do plan on going there towards spring and wanted input on these open diffs dodge for some reason done to us!! Used to live close to uwharrie national forest so will go back visiting cuz and do a little of those trails also. North Carolina RED MUD there. Very slick!! Looks like if I do too much, new bumper and winch will be needed. 2013 ram express, so not a good bumper for winches I’m afraid!! Thank again!! Everyone be safe out there!!!
@@samlautenschleger9771 there’s not much I haven’t been able to get through and outside of that I just know my personal limits. Anytime I think the 4x4 system is being pushed to its limits on my truck I stop, because where I’m driving most often if something goes wrong, I’m sliding down a steep hill hitting tree trunks hahaha. That being said, with your demands you should be just fine.
@@michaelgregory7457 👍👍👍👍. Thanks again. I’ll not get in too much and always have the buddy truck along too!!!!!Be safe out there and watch out for those 🌲!!!!!!😃
toyotas have lsd diffs, but,,they forgot to fit it.. you are able to tighten them up, with a spanner..
Pretty sure your yard is on 24 near Erin.. Am I correct
Perhaps lol
Do you have it in 4wd to lock the rear
Yes 4 low and I’m not a fan
Either your limited slip doesn't work or you don't have it. There should be minimal difference in the snow between the two. I have posi in my 2003 s10, never had a problem in the snow. Apparently dodge limited slip sucks.
It's a helical/torsen style LSD once one wheel loses complete traction it acts like an open diff. Now a few fellas in comments mentioned that with a simple brake application you can get this style of LSD to hook up nicely. you most likely have a clutch style
Both wheels were spinning with the LSD. You stopped moving because of technique - right?
What is Base Engine Control? I seen it as an option.
I'm not sure to be honest. you saw it as an option for these trucks?
@@TheGettyAdventures part of the off road package. I can only find one article that say it has to do with a/f ratio, timing and idle rpm. RAM only calls it Base Engine Control, without any explanation.
Hi Do you need some great lighting for your car to help you better driving, off-road? We're the pro auto lighting manufacturer for nearly 20 year and we're looking for sponsorship!
Looking at the video, the snow was solid on your lsd run, but melted to the dirt on your second run. Just the facts ma'am.
probably.. you jacked the whole rear end and put the tires on ice.. hahah great videos though dude.
thank you sir!
Floor jack probably would have been best.
So dirty, I won't sleep tonight 😆
Gotta love the salt and crap on our roads this time of year!
I always catch shit from my friends for keeping my truck super clean! They say "Its a truck, who cares if it's dirty." Well I care. I hate having dirty vehicles. I don't mind taking it off road and having fun, but afterwards, its getting cleaned up!
@@deviantarsenal well...it was 81 and sunny here today, no snow or salt lol. My wife and I are doing the TAT next year (most of it), and will be avoiding every mud hole I see 😁
Entertaining video but you are not only wrong, you are perpetuating a myth. Read up on the locking properties of worm gears. With a Torsen it works exactly opposite to how you explained. The 80:20 split is incorrect. It means if you force 20% on the spinning wheel, it will lock the LSD and send 100% to the wheel with traction. Effectively locking the diff.
RAM is using low ratio Torsens to reduce wheel spin to reduce the possibilities of grenading the differential when you lock it up. Also worm gears are stronger then spider gears. A proper high ratio Torsen locks by touching the brake and adding torque to the spinning wheel. That forces the gears to bind or wedge tight. Like kicking a door stop while trying to pull the door towards yourself. Try your jacked up tire trick, then spin the wheel and touch the brakes. You'll see what I mean.
well I don't want to be perpetuating any myths. I was planning on re-doing this test anyways with some better conditions. I was always told that torsen style diff's are great but when one wheel loses complete traction they don't work. I guess I'll have to give some break next time and get her to catch. thank you for the info!
@@TheGettyAdventures the PW uses a low angle worm gear verses the high angle used in say a Mustang. The difference in gear angle changes the lock ratio. Front Torsen® diff's use a lower ratio so they don't lock when you turn. This is what the Raptor (option) uses up front. It can still be very effectively locked with light brake action. I demonstrated it on Truck King.
czcams.com/video/INhXh1sH9U4/video.html
@@fabulousoffroaddesigns5080 What an AWESOME rig you have sir! I have always loved that ford had a rear locker option but I was not aware that you could also get a front torsen diff installed with warranty as well! Now am I correct saying a helical LSD is a torsen style LSD? both use worm gears I believe.
my secret goal for this PW is to put a light weight camper in the back and tour the country. that set up would be alot larger then your nice overland rig but I figured I could still get into some cool places! anyways appreciate all the info! your not from Ontario are you?
@@TheGettyAdventures no not from Ontario. I live in Prince Edward Island. I do end up there occasionally.
Yes the "helical cut gear" system is Torsen®. All of them are including Quaife, Eaton, and others. This is why you can't call it a locker. Eaton came out with the True Track after Gleason invented, patented and released the Torsen®. Gleason sued Eaton for patent infringement and won. So Eaton Trademerked™ the words "locker" and "locking" and sued Torsen® for using this in their marketing literature and won. Eaton still pays Gleason for every unit they make, however Gleason re-branded their Torsen®, changing their "torque sensing, auto locking differential" to an LSD on paper, so they don't have to pay Eaton trademark fees.
limited slip is only good in the city when you come around corners... that's what they design them for...
Ya
Jack stands when under the truck. Never trust the jack.
Agreed! however the tire was about an inch off the ground and if the jack let go the truck would of fallen about 4 inch maybe. I'm a heavy duty mechanic so I know where to not put my little fingers lol
It needs more go juice...
Did anybody catch the fact that he said I bought this ram 2100 lmao and he's trying to say other people are dumb bahahahah lmao only god can judge me lol
I call BS!.. if your “locked” differential can’t pull your truck off that jack then it’s not working, it’s doing no good whatsoever. I would lock it, drive ahead a bit and give it a chance to lock in, then jack it up, if it’s working it will drive off the jack, if not, it’s not working.
A couple parts of your explanation aren't really accurate. The first thing, which gets repeated endlessly...a locked differential does NOT split TORQUE evenly 50/50. It splits ROTATIONAL SPEED evenly. The TORQUE sent to each wheel is a function of the reaction force from the ground (or the brakes). So if you have a locked diff with one wheel in the air, the wheel on the ground is getting almost 100% of the torque because it has all of the reaction force (resistance to turning). The wheel in the air has almost no resistance to turning, so it's only getting a tiny bit of torque. Second, you're completely mixing up how clutch plate limited slip differentials work versus helical-gear torque-biasing differentials. Clutch LSDs generally have a percentage (often 15%-40% for production street car diffs) of torque that they can send to the wheel with traction when the other one is spinning. And a clutch LSD will do that even with the spinning wheel completely up in the air. A torque-biasing helical-gear diff takes the reaction torque from the low-traction wheel and can send that much torque times the biasing ratio (usually somewhere from 1.5 to 4.0) to the opposite wheel. So if one wheel is on ice and can only take 50 ft-lb of torque before spinning, a helical diff with a 3:1 biasing ratio can send up to 150 ft-lb of torque to the other wheel. And it does this instantaneously using the gear geometry, unlike a clutch LSD which first spins the low-traction wheel, then starts to transfer torque as clamp force builds up between the plates and friction drags the high-traction side into motion. And finally...limited slips (clutch, helical, gerotor, viscous) don't suck, they're just not intended to be used for mudding or rock-crawling. They're for maintaining relatively continuous power transfer to the ground during street driving, including during hard acceleration in corners and changes in surface conditions. Front and rear lockers are useless on the highway, but that rear helical can keep your Power Wagon more stable on the highway dry or wet when you're in 2WD as well as when it's slippery enough to use 4WD. Front and rear helical diffs together with 4HI would be the ideal configuration for snowy or icy highway driving.
If confirmation bias was a person 🤦🏻♂️
The fact that Ram put a 4wd lock in their 1500s was awesome. I do wish they had just a rear lock available on them. I mean, how often does anyone really need 4wd?!?
The days of the ol' 2wd posi are greatly missed!
My 17 cummins got stuck on flat ground in 2 inches of snow! Have video of 1 back wheel and one front wheel turning while in drive witb no gas applied. Complete joke!
lockers man they make a big difference. that and good set of tires!
Obviously your Cummins was ordered without the noslip diff option, works friggin fantastic, I think its the Snow Chief package if I remember might be aval as a stand alone option.
Yeah there's several different things going here in four high you can bog down to where your wheel speed stops and in your vehicle stops and you're automatic transmission breaks the bond breaks the lock between the engine and the transmission and then you're stuck a Jeep I don't know about other vehicles but a jeep has locked up in four low of the torque converter so the joining of the engine in the transmission is much more reliable so that you can't get your wheel speed slowed down and then get you stuck. You guys with big gay trucks will know this that you got all the high powered engine high torque engine right and then piss poor off-road performance so you got tall tires with short side walls you're running street tires you've got a high torque engine you're running around off-road in 4 high and you bitching that you're getting stuck you got the wrong equipment and you don't know what you're doing is what the problem is but you try to blame it on a limited slip diff and you're wrong. Even two open diffs lets the engine and the wheels find the traction that's available and it will propel you but if you have a high power high torque engine and your hard on the throttle you might as well be driving Chevy Camaro from the 69 with a 427 in it you're not going anywhere with it. Trucks are made to be sold they're not necessarily made to be good off-road in the optimal sense. Best all around general purpose way to go limited slip in the back selectable locker in the front and then stop talking about it and get some mud tires