[chuck whitaker]

my 700r4 went out. so i bought a transmission for my friend to have rebuilt. he says it is a th350 out of his camaro. but judgeing from the oil pan it looks like it is a th400. but it has the th350 yoke on the back. took it to another friend of mind and he says it is a th375 i believe. this transmission has be puzzled


what kind of trans is this. and can it be built to be strong. and can a th350 converter work on this trans. im so lost right now. thanks for reading guys

[chuck whitaker]

sorry i dont know how to post pics the only way to view them is to copy and paste

[chuck whitaker]

C:\Users\novellaw123\Pictures\trans 2.jpg

C:\Users\novellaw123\Pictures\trans 3.jpg

[Crosley]

Read this Thread on how to post photos here.

I edited the thread title so folks know you are trying to ID a transmission

[chuck whitaker]

Originally Posted by Crosley

Read this Thread on how to post photos here.

I edited the thread title so folks know you are trying to ID a transmission

Thanks man you helped me out alot.

[mmerlinn]

You have a 1988 TH375C with a heavy duty K case. Except for the output shaft and the tail (which may have "TH375" cast into the bottom it), everything is the same as a TH400 transmission.

[chuck whitaker]

thanks i was waiting patiently for someone to chime in. i ordered a rebuild kit for a th400 so i think i will be good. also have a tci streetfight converter 241000 for a th350 not sure if it will fit. still have converter in box and dont want to open it if its wrong. ive never heard of a th375 what kind of cars did they come in, and what was gm purpose of them. are they as strong as a th400 or have any weak points in them? again thanks for replying

[eloc431962]

Originally Posted by chuck whitaker

thanks i was waiting patiently for someone to chime in. i ordered a rebuild kit for a th400 so i think i will be good. also have a tci streetfight converter 241000 for a th350 not sure if it will fit. still have converter in box and dont want to open it if its wrong. ive never heard of a th375 what kind of cars did they come in, and what was gm purpose of them. are they as strong as a th400 or have any weak points in them? again thanks for replying

They are just alighter duty trans then the 400, the 375 came out in full size cars from 1972-1976 and do have the same driveshaft yoke as the 350, i would call the converter place you got it from and make sure you have the correct one . JMO
Flip the trans over and see what it say's on the underside of the tailshaft see if it has 375 on it.

Cole

[joshp83]

the made 3 diffrent 375 over the yrs but yours is a th 400 with a 350 yoke 350/400 use the same converter so your ok there in 87 they added another checkball in the valve body so shif kits are diffrent because the seperator plates diffrent

[mmerlinn]

TH375Cs came in a lot of trucks, too. The only significant difference is the output shaft and tail housing.

[chuck whitaker]

th375c. learn something new everyday. also do you know if this transmission is the same size as a 700r4. havent pulled my 700r4 out of my regal yet to get measurements

[mmerlinn]

Originally Posted by chuck whitaker

th375c. learn something new everyday. also do you know if this transmission is the same size as a 700r4. havent pulled my 700r4 out of my regal yet to get measurements

Different length.

http://www.crankshaftcoalition.com/w...mon_automatics

[AutoGear]

If you ordered a rebuild kit for a 400; you'll have the wrong output seal and bushing I believe. 27 spline seals and bushings are everywhere though, no big deal.

[chuck whitaker]

okay that does make sense because i remeber my friend was telling me some stuff that he replaced with th350 parts, thats why he thought it was a th350. but my friend is a little on the slow side i think ha. because i remember our other friend rebuilt this transmission for him about 5 years ago and he still was wrong on what he thought it was. also can you get away with not useing the electric kickdown. i have a b&m quick silver shifter in my garage brand new in the box thats just been sitting there for years and i rather just use that for a kickdown if possable