Replacement trans

[blackbird]

First I guess I should start off by introducing myself. This is my first post over here but I've been surfing the forums for a while now. I just picked up a one owner, 63k mile red '90 TGP that's in overall very nice shape. I've also got a few other GM's and a "couple" turbo Dodge's as well.

My new TGP needs a new accumulator for the PowerMaster III, but the major reason I got a good deal on it was that the trans is pretty much gone. It's still got first and second, but when it tries to shift into third it drops to neutral. Which brings me to my question.

I'm thinking about doing a 5-speed swap in the future, but for now I might consider another auto. I missed out on another TGP in a local junkyard, and was wondering where I could find another HD 4T60 that will work. I'm guessing the ones from a FWD Caddy V8 (~1990-ish) as well as from another TGP. What I can't find is if all the 4T60's used in the first gen Series I supercharged 3800's were electronically controlled? The one behind my twin dual cam 3.4L in my old '91 Olds Cutlass Supreme International was a 4T60-E HD. Are there any other options/sources that I missed?

The only thing I've found recently is a 45k mile 4T60 (non -E) behind a regular Series I 3800 (non-S/C) for a decent price. They said it was from a '92 Buck Regal sedan, but I thought that by '92 all 3800's got an -E version.

Any opinions? Suggestions? Thanks.

[mfewtrail]

Your only *good* option is to rebuild the transaxle w/ the TGP specific parts(you might want to talk to others on the board and ask where their transaxles were rebuilt) or get another 4T60 from a TGP donor car if you can find one. If you are set on a 5spd swap and need to drive the car in the meantime, a regular 4T60 would work..but it will likely fail pretty quickly if you drive the car hard.

[idbeast]

A regular 4T60 won't last a month, most don't last 2 weeks!!!
Any series 1 3800 tranny is a 4T60E or a 4T65E and they won't work.
You did NOT list a home state so I'm shooting in the dark trying to help find one close to you...
Try these wrecking yards...
Viking Truck and Auto USA-CA(Redding) 1-800-338-7474
Brandon Auto Salvage, Inc. USA-FL(Valrico) 1-813-689-8131 ext. 232
Toll Gate Auto Parts USA-PA(Greensburg) 1-800-342-1125
:drinking:  :drinking:

[blackbird]

Any series 1 3800 tranny is a 4T60E or a 4T65E and they won't work.

That's what I was pretty sure. I wish I had more time to check out the Regal I was looking at. I was stamped as a 4T-60 on the bottom of the pan and I didn't see any of the electrical connectors for the solenoids. Odd.

I might go straight to a 5-speed just to get it on the road. I guess I'll have to see if anyone can help me with a chip to get it running right with the stick. On a side note, I saw a rebuilder over in Phoenix selling stuff on eBay recently and it caught my eye because they were listing one as a "440T4/4T60 Heavy-duty". It's only a few hours away so I might give them a call and see what's up with it and if they're knowledgeable in what they're doing.

By the way, I'm in southern California. Thanks for the help and suggestions.

[god910]

I can help w/ the chip.  Make sure and check out the for sale section on www.w-body.com  there is an accumulator for sale on there right now.  Lemme know.