Planning a 4T60E to 4T65E conversion.

Well my current trans is screaming uncle after I got my tuner....

"back story"

What was funny is after this race I went to give another ricer in a eclipse a eaton salute . The transmission went from 2nd to 1st and slipped all the way to the Rev limiter. DAMN! Drove home that was the end of my night.



This was a couple of weeks ago. I had the transmission shiftpoints at 5800 RPMs. I have lowered them to 5500 RPM since and threw in a bottle of lucas so now everything is Ok.

So after talking to Billboost37. We decided I should upgrade to a 4T65E trans.Yesturday he put a down payment on a 4T65E-HD out of a 98 Regal. So now it is time to .

We will keep this updated with new info as it comes along.

P.S. anyone got 96 or 97 Service manuals for sale

Anyone ever found the firewall wiring harness from inside? I hear the pcm is inside the riv instead of in the engine bay.

Wanted to change that 4th gear shaft huh E?

Derek may have found an issue.
https://rivperformance.editboard.com/series-ii-engine-transmission-f4/identify-this-part-t2090.htm

Bump...

Picked up PCM and transmisson harness from case to firewall.

Hope to have the TC ordered soon .

i have a mitchell disk for a '96 riv, it only works pc not apple. the pcm i believe is in the inside on the passenger side. you have to take the black panel off. let me know how the swap goes. i wanna switch non hd tranny to a hd tranny. check out zzperformance. com and 3800performance.com they have race trannies.com

I have the full factory service manuals for the '98. The transmission is most likely the same for '97

You are close by, just LMK if you want to use it

Close.. you bet. He'll be doing the swap in Enfield Ct and IIRC on 1/16 he'll be up toward Boston.

Although I figure all we really need is to confirm the pins from the trans connector to the PCM connector/pin location. I am assuming GM kept them the same for all 3.8's in 97.

There is a full breakdown of the 4T65-E wiring harness connector in the FSM. I skimmed the transmission pages last night (hundreds of pages about the 4T65-E I did not have time to read them all). Every connector, each pinout, trouble code, ... well just everything is covered in there. It's very extensive.

I think somebody has hosted the GM FSM online thingy somewhere, that might have the pinouts in it. Not sure how detailed their online service manuals are. I'll see if I can find it.

So has anyone actually done this yet?

AA, we need a zombie or mummy emoji for thread resurrections like this!

Hahahahaha nailed it