Transmission swap

Subject: Transmission swap Thu May 22, 2008 5:48 pm

Okay, as I was looking through Ed Morad's parts I saw the tranny from a newer Riviera ('97 I think) and that got me to thinking - can I swap my current transmission with that one? Would I have to buy a PCM from a '97 Riv as well? I'm just thinking, if my tranny ever goes out I could just replace it with a newer one that I could actually use a tuner with instead of my current one that I cannot.

Subject: Re: Transmission swap Fri May 23, 2008 12:21 am

Yes you can. Oldsman is doing it. You would need the PCM, driver's side axle, maybe spindles. That is all I can remember off the top of my head.

Subject: Re: Transmission swap Fri May 23, 2008 7:01 am

Close Buickman.. great info.

Actually it's the passenger side axle that is different. The number of splines are different from 4T60 to 4T65. I think Olds said spindles will stay the same.

PCM, and some minor wiring will be needed to change the connector for the trans. I think it adds 2-3 wires. You would need to run those extra wires into the cabin to the pcm.