Corvette specific TH350 tail housing?
Thread Starter
Intermediate
Joined: May 2006
Posts: 26
Likes: 1
From: St Charles MO
Corvette specific TH350 tail housing?
Hi,
I'm looking to replace my TH350 in my 1980 with a new one.
I was looking at the Performance Automatic Transmissions on Jegs web site...they have a "Corvette Specific" one because, per the Jegs tech, the Corvette has a difference tail housing.
Not that I'm doubting the tech, I was jsut wondering what is so different with the tail housing...mine looks like a normal 6 inch tail housing.
Can anyone shine any light on how they are different?
TIA
-Dit
I'm looking to replace my TH350 in my 1980 with a new one.
I was looking at the Performance Automatic Transmissions on Jegs web site...they have a "Corvette Specific" one because, per the Jegs tech, the Corvette has a difference tail housing.
Not that I'm doubting the tech, I was jsut wondering what is so different with the tail housing...mine looks like a normal 6 inch tail housing.
Can anyone shine any light on how they are different?
TIA
-Dit
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
All I can say is that GM had 3 lengths for the housings on both the 350 and 400 trannies....why, I dunno....
they even did a 350 tailshaft/housing on a 400 tranny and called it a THM 375....once again...dunno why.....
they all bolt up the same AFAIK......
sounds like a make work project for the guys in the THM division....
they even did a 350 tailshaft/housing on a 400 tranny and called it a THM 375....once again...dunno why.....
they all bolt up the same AFAIK......
sounds like a make work project for the guys in the THM division....
Thread Starter
Intermediate
Joined: May 2006
Posts: 26
Likes: 1
From: St Charles MO
Yes, I agree, I didn't know there was a difference....these are the 2 trannys...
Standard:
http://www.jegs.com/i/Performance-Au...35102/10002/-1
Corvette:
http://www.jegs.com/i/Performance-Au...75102/10002/-1
...and of course, the Corvette one is over $100 more expensive.
Standard:
http://www.jegs.com/i/Performance-Au...35102/10002/-1
Corvette:
http://www.jegs.com/i/Performance-Au...75102/10002/-1
...and of course, the Corvette one is over $100 more expensive.
Instructor
Joined: Oct 2009
Posts: 107
Likes: 0
From: Cabot AR
the corvette uses' a shorter tail shaft for the th350 and the 700r4, they were used in other cars and trucks but only rarely, you can put the long shaft trans in a vet but you have to change the crossmember and drive shaft. I installed a 700r4 from an f body in my 81, have to modifie the tail to make it fit
Instructor
Joined: Apr 2002
Posts: 132
Likes: 0
From: Indianapolis In
I bought my 1980 new in 1979(still have it). It was an L-48 with a turbo350 and a lock-up converter. I've purchased two rebuilt turbo 350's w/o mentioning that they were for a corvette. They were shipped to me and installed perfectly w/o any mods. Did I just get very lucky?
slaine
slaine
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Racer
Joined: Jan 2005
Posts: 499
Likes: 0
From: Enfield CT
I purchased that tranny from jegs and installed it in my vette.I had the same question as you did and called Performance Auto on this and he said they were different.I purchased the one for Vettes because I want the lifetime warranty.So far the Tranny has been fine.It has a very mild shift kit in it.When you stomp on it it does shift through the gears very nicely and has a good down shift.What I dont like about it, is in manual mode when shifting from 2nd to 3rd gear there is a small delay.I called performance auto about this, they said pull my valve body out and send it to them and they will fix it.I never got around to doing that.I wish they would send me one so I can swap it out.In there defense I didnt ask them if they would do that.
