Tranny Rebuild
Thread Starter
Burning Brakes
Joined: Mar 2019
Posts: 843
Likes: 149
From: Iowa
Tranny Rebuild
Hi I am asking this for a buddy who has a 1990 Coupe with a auto tranny, He has dropped a GM Pref, crate motor in making around 400hp and now wants to rebuild the tranny with custom parts. Who would you recommend that he sends it too for a top notch rebuild? One shop he was told about was Monster Transmission's Any advice on them?
Thanks
Hawkeye56
Thanks
Hawkeye56
Team Owner
Joined: Sep 2003
Posts: 25,381
Likes: 2,735
I'd suggest checking 'local' with 'professional' performance shops. There's very likely someone 'local' that can ease the pain and provide documented past history. It might be a good idea to confirm the 4L60 in the car is actually original and not already been through a rebuild or two. The transmission case ID should be very visible with little effort. A '90 I'd expect to find an 0YDM for the code. Anything other than you'd want to probably confirm first.
If your friend has a FSM - ID locations etc. can be found 7A-2
If your friend has a FSM - ID locations etc. can be found 7A-2
Last edited by WVZR-1; Oct 29, 2021 at 11:39 AM.
Burning Brakes
Joined: Sep 2017
Posts: 933
Likes: 165
Thread Starter
Burning Brakes
Joined: Mar 2019
Posts: 843
Likes: 149
From: Iowa
Thank You
Burning Brakes
Joined: Sep 2017
Posts: 933
Likes: 165
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Always good to have someone 'local' vs a buy the other side of the country! Local support is sometimes very important
Now if PA has a dealer close to the OP's zip code everything changes. They may very likely have a dealer close to the OP!
..........
I suggested checking 'LOCAL' - he could maybe very likely receive a PA suggestion from a 'LOCAL'!
Last edited by WVZR-1; Oct 30, 2021 at 04:20 PM.
Burning Brakes
Joined: Sep 2017
Posts: 933
Likes: 165
Yes and 'Performance Automatics' if we're talking the same 'builder' is located in I believe Frederick MD. The OP is in I believe Iowa maybe because his 'friend' is! There's absolutely no reason to believe that a similar build of his 4L60 can't be accomplished more local to him.
Always good to have someone 'local' vs a buy the other side of the country! Local support is sometimes very important
Now if PA has a dealer close to the OP's zip code everything changes. They may very likely have a dealer close to the OP!
..........
I suggested checking 'LOCAL' - he could maybe very likely receive a PA suggestion from a 'LOCAL'!
Always good to have someone 'local' vs a buy the other side of the country! Local support is sometimes very important
Now if PA has a dealer close to the OP's zip code everything changes. They may very likely have a dealer close to the OP!
..........
I suggested checking 'LOCAL' - he could maybe very likely receive a PA suggestion from a 'LOCAL'!
I personally rebuilt my own transmission. I like learning new things and I like knowing what parts are being used. I found a wonderful video that slowing show every step of the rebuild, If I can do it myself I'm going to. everyone is different. I think its a good idea to know something about rebuilding a trans before having someone do it for ya
