So, one thread for two different thought processes.

First and foremost is transmission.
It seems that the 1995 gmt400 truck 4l60e is a one year only thing. Mines giving signs that its on the way out. Local yard has tons of 4l60e and 4l80e with warranty for $400. Except no 95. Its my understanding that its a difference in the valve body and how the electronics work. Is there a .bin or something that makes it a feasible swap with factory tuning and reliability? If so, what years and versions?

Secondly, good friend has a 89 Corvette tpi system laying around. Just intake, throttle body, injectors, and a few sensors. I remember my 88 vette was a fantastically torquey engine with decent fuel mileage. Is there a well sorted tune to do a tpi swap with an e trans? Any leads on a write up?

Thanks guys. Been out of obd1 gm stuff for so long i dont remember any of it (getting the 64 elky t boned and some head trauma probably didn't help either)