Guest Gp crazy Posted November 1, 2004 Report Share Posted November 1, 2004 Can I take a 1997 Buick Lsaber 3800 series 2 tranny 4 speed with od and put in my 1990 gp ste? 1997 is a bigger car width, weight & length. Im asking because I may have a good tranny out of one for free and I want to use it when mine quits! I got a ride in the 97 it turns 1500 or so rpms at 70 mph does that sound right? The miles are around 100,000 or so and fluid is clean but the motor has gone south for the rest of its life The person thought not changing oil was a good Idea They were to cheap and said it was not needed! I hope this person has learned a lesson this time! because this is # 3 he has blowen up in the last 3 years 8) He just does not listen thanks jeff Quote Link to comment Share on other sites More sharing options...
THe_DeTAiL3R Posted November 1, 2004 Report Share Posted November 1, 2004 Doesn't the 1990 have the 4T60? Non-electronic. I don't think it would work without putting in the PCM from the Lesabre or modifying something... 1500 or so rpms at 70 mph does that sound right? I don't know those engines or cars, but my 3100 does about 50mph at 1500. I would think it should be closer to 2000rpm but I could very well be wrong. Quote Link to comment Share on other sites More sharing options...
excelsior Posted November 1, 2004 Report Share Posted November 1, 2004 2000 rpm on a 3100 = 67 mph so i would think it should be closer to at least 16-1700. Quote Link to comment Share on other sites More sharing options...
Guest Gp crazy Posted November 1, 2004 Report Share Posted November 1, 2004 Update: well he decided to fix it and drive it again Why i don't know but this is getting very $$$$$$$$$$$$$ one once of protection by changing oil could have bypassed this altogether thanks jeff Quote Link to comment Share on other sites More sharing options...
w-bodys_are_the_best Posted November 2, 2004 Report Share Posted November 2, 2004 just to let you know, i went through the same idea with my 94 cutlass 3100, it has the 4T60E, and you can't even use another 4T60E unless it's from a W-body, it has to be from a W-body, I know this because i was gunna use a 4T60E out of a Buick Lesabre, though it's the same trans, it has different computer hook-ups, and different gear ratios, and even if you could get it to mount up and hook up electrically, the computer would think you still have the W-body trans, and it won't shift right or lock up, and you'll just end up burning that tranny in short time. I also could have had a free transmission, but ended up havin a real pain-in-the-ass, because my 1994 cutlass we eventually found out had a 1995 transmission in it, and the 94's mount different than the 95's, but the build date was in july 94, so i suppose they ran out of 94 transmissions, and started puting the 95's in, yet GM didn't bother putting a sticker or anything anywhere on the car, and the tag was messed up the code on the transmission kept showing up as a bonneville, so i don't know what the guys at the olds plant were smoking that day, but it must have been something good. my point is don't try to use anything but a W-body trans thats the same model trans as yours or ur just gunna end up with a huge headache, and i don't know about where you live, but around here W-body 4T60E's are very hard to find, i called over 30-40 salvage yards and found 4. Quote Link to comment Share on other sites More sharing options...
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