True about the information availability. When I built my first engine and car I relied on a MOTORS manual. Still have it actually. Awesome reference source. Wish I had the whole collection.
I've ben rebuilding THE 400 SENC 1977 ,SOME ARE CALD 375 BUT,! ITS A GREAT AUTOMATIC TRANSMISSION ,ONE OF MY FAVORITE 🤔 yes! That top hat was a great idea WOO.
Don’t worry about something “completely different”. Lol TH400 stuff is ALWAYS interesting. I’ve been eyeballing that B&M pan. The prices really jumped on those. But it honestly looks like the very best pan for TH400.
The 400 Chevy is a small block yes but the big block is actually a 402 c.i. I've never seen or heard of a 400 BBC. I use to have to drill 350 heads to use on the 400 small block
I'm glad you showed how you add a drain plug. I've been thinking of doing the exact same thing. Do you tighten the bolt in the nut before you weld it inside the pan? Looks like doing that with a flat washer might help keep it flat against the pan.
You can use muratic acid to strip the coating off bolts and nuts if your in a pinch... just don’t leave any out it will rust stuff in your shop and rinse parts with water ...
the trans u want is a 02xx 400r turbo it will have 02xx welded on the bell housing they are good to 800 hp stock they have the heavy duty 8 bolt pump heavy clutches stage one shift kit stock saves a lot of money on a build . they are called strip or heavy application transmissions and it has a o ring on the tube which is better. u can get them out of heavy trucks and motor home but most have the 450 hp 454 in front of it on motor homes . they are perfect for a street build but it has most of the parts to build a 2000 hp trans they are from 1980 to 2000 still with the o ring on tube they sell them as a crate trans. i got 4 setups free in the last 2 years with the 450 hp 454 modeled after the 70 chevelle 454 ho
When you mark the dipstick at the top of the pan rail for the full mark with the pan off, after installing the pan do you add the transmission fluid to the mark cold and run the transmission to get it warm and refill to the mark? If so it would be normal to show overfull when the transmission is cold?
You mentioned using the small yellow tag on the side to identify the transmission. Do you know of a resource to decode it because I can't find a reference "84 MF" anywhere.
I have an 86 G30. I see I have that same pan with the indentation around the bolt hole. Trying to determine which kind of transmission I have so I can source the parts. Currently it only moves in reverse and I’d like to try and fix it or replace it with a newer one. Is a swap possible or would I have to Chan my engine out as well?
Sir, what dipstick would fit a turbo 400 behind a 351w? I don’t have a midplate. Unknown crossmember. Locking or non would be okay. I don’t know what will fit the foxbody and my searches didn’t give me a definitive answer. I don’t want to do flexible or lokar. Any ideas? Thank you
Then you will be experimenting and fabricating something to make one fit. What's wrong with flexible tube? I use them all the time with zero issues. They allow me to shove the motor back closer to the firewall in my drag cars, without the factory tube in the way.
Not directly, but many times I have gone through the lower gear train. Part of that is removing the output shaft. Swapping it would be a direct exchange, but it’s one of the first pieces to assemble.
@@mountainsgarage ok cool. I have a 64 Cadillac with the 429. And I’m taking out the jetaway and putting a th400 from a 65 Cadillac since that’s I think the only year th400 that will bolt up to the 429. But it’s a long output shaft. So if I swap it for a short shaft then it’ll be about the same length as the jetaway and I won’t have to cut the drive shaft. If it all works out right I hope
@@HalloweenHunters "About" wont cut it. It'll have to be the SAME length or you'll end up cutting the driveshaft. Personally, I'd just take the driveshaft in and have it done VS. Tearing an entire trans apart to change the tailshaft.
So its like you read my mind. So that transmission i said I was gonna rebuild, finally pulled it out and I been looking for 2 days now online, code: 79-cm still no clue what the cm is. PS I don't got face book :(
True about the information availability. When I built my first engine and car I relied on a MOTORS manual. Still have it actually. Awesome reference source. Wish I had the whole collection.
Keep it up. Love the information you are giving. Thanks
Thank you!
Thanks again for sharing your knowledge.I Enjoy your videos keep them coming..
I've ben rebuilding THE 400 SENC 1977 ,SOME ARE CALD 375 BUT,! ITS A GREAT AUTOMATIC TRANSMISSION ,ONE OF MY FAVORITE 🤔 yes! That top hat was a great idea WOO.
As always you are a wealth of great info. Thanks
Thank you!
Don’t worry about something “completely different”. Lol TH400 stuff is ALWAYS interesting. I’ve been eyeballing that B&M pan. The prices really jumped on those. But it honestly looks like the very best pan for TH400.
I agree!
Thanks for the information 👍🏼
Shawn mine has a CA-67 "space" 55003 and has 8 bolt pump housing
Upstate ny love the info a!
Thanks!
The 400 Chevy is a small block yes but the big block is actually a 402 c.i. I've never seen or heard of a 400 BBC.
I use to have to drill 350 heads to use on the 400 small block
Ok, my first car was a '56 Olds, and I sold a really pretty nice 48 Buick to buy my B&M Hydro stick 4 speed.
I'am Your Newest Subscriber Great Videos My 1988 G20 Camper Van Has A TH400 wish it had 700R4 it drinks fuel with no overdrive
I'm glad you showed how you add a drain plug. I've been thinking of doing the exact same thing. Do you tighten the bolt in the nut before you weld it inside the pan? Looks like doing that with a flat washer might help keep it flat against the pan.
Just I just snug it up and tack it, then remove and weld it up.
You can use muratic acid to strip the coating off bolts and nuts if your in a pinch... just don’t leave any out it will rust stuff in your shop and rinse parts with water ...
Lots of people use too try to shim up the floppy filter " DON'T DO THAT " 😀
the trans u want is a 02xx 400r turbo it will have 02xx welded on the bell housing they are good to 800 hp stock they have the heavy duty 8 bolt pump heavy clutches stage one shift kit stock saves a lot of money on a build . they are called strip or heavy application transmissions and it has a o ring on the tube which is better. u can get them out of heavy trucks and motor home but most have the 450 hp 454 in front of it on motor homes . they are perfect for a street build but it has most of the parts to build a 2000 hp trans they are from 1980 to 2000 still with the o ring on tube they sell them as a crate trans. i got 4 setups free in the last 2 years with the 450 hp 454 modeled after the 70 chevelle 454 ho
When you mark the dipstick at the top of the pan rail for the full mark with the pan off, after installing the pan do you add the transmission fluid to the mark cold and run the transmission to get it warm and refill to the mark? If so it would be normal to show overfull when the transmission is cold?
You mentioned using the small yellow tag on the side to identify the transmission. Do you know of a resource to decode it because I can't find a reference "84 MF" anywhere.
Another great class. Good stuff, thanks.
Just picked up a nice moroso deep pan for my 400 on my 68 camaro
Some references say the FULL mark should be a 1/4" above the mating surface. As is my stock TH400 from 1969. Is that ok too?
I have an 86 G30. I see I have that same pan with the indentation around the bolt hole. Trying to determine which kind of transmission I have so I can source the parts. Currently it only moves in reverse and I’d like to try and fix it or replace it with a newer one. Is a swap possible or would I have to Chan my engine out as well?
Where can I find the place to look up a 1984 turbo 400 with tag FI ? I can only find up to 1982 searching
Sir, what dipstick would fit a turbo 400 behind a 351w? I don’t have a midplate. Unknown crossmember. Locking or non would be okay. I don’t know what will fit the foxbody and my searches didn’t give me a definitive answer. I don’t want to do flexible or lokar. Any ideas? Thank you
Then you will be experimenting and fabricating something to make one fit. What's wrong with flexible tube? I use them all the time with zero issues. They allow me to shove the motor back closer to the firewall in my drag cars, without the factory tube in the way.
Do you have any videos changing a long output shaft to a short output shaft on a Cadillac th400?
Not directly, but many times I have gone through the lower gear train. Part of that is removing the output shaft. Swapping it would be a direct exchange, but it’s one of the first pieces to assemble.
@@mountainsgarage ok cool. I have a 64 Cadillac with the 429. And I’m taking out the jetaway and putting a th400 from a 65 Cadillac since that’s I think the only year th400 that will bolt up to the 429. But it’s a long output shaft. So if I swap it for a short shaft then it’ll be about the same length as the jetaway and I won’t have to cut the drive shaft. If it all works out right I hope
@@HalloweenHunters "About" wont cut it. It'll have to be the SAME length or you'll end up cutting the driveshaft. Personally, I'd just take the driveshaft in and have it done VS. Tearing an entire trans apart to change the tailshaft.
So its like you read my mind. So that transmission i said I was gonna rebuild, finally pulled it out and I been looking for 2 days now online, code: 79-cm still no clue what the cm is. PS I don't got face book :(
That is a Series 20/30 motorhome chassie TH400
My tag is 86 FlA 15840. After the F it's either a lower case l a I or 1 please help. It has HD25 on bell housing and a park break on the end.
👍
What is a 385 ? Or 375 ?
A TH375 in a nutshell is a TH400 with a TH350 spline output shaft.
I think I killed my th400 but I'm going to try to rebuild it In my room any suggestions for me
Great! There are free downloads of the ASTG manual online.
If I can help feel free to reach out!
Yea, DON'T do it "in your room". You will have a hell of a mess to deal with after.
Yep DON'T.
I know a lot of people that call 3 inches 4.
you made a mistake last chipped a case try this one i 425 direct drum in a 400 well you know what happened next haha never do that
Motors manual says its a 350