Leaderboard

55 linked some w-body specific links. You may also check into the Fiero groups and see how their wiring is done and which PCM's they use. If you're on Facebook go to this group https://www.facebook.com/share/g/16TmFr1XSe/ They specialize in Fiero's, but he's posted a ton of info on wiring and PCM's. the concept will be the same, even if the wiring plugs to match the rest of the car harness don't line up.

Lol.....you're not the first to attempt this swap......

Welcome! That sounds like a somewhat ambitious swap. A 95 would have had the 4t60e, which has the shifts controlled electronically. Outside of physically fitting in the engine bay, I can’t see any of the existing electronics functioning with an LS4. On the flip side…it’s an LS4. I know there are aftermarket companies that make ECMs that can run LS series engines, as well as standalone TCMs specifically for the 4T80e, so finding the parts to run the powertrain should be possible, and likely relatively easy as well. Best of luck! While ambitious….it would be awesome to see something like this completed!