I have a 94 Z28, and I need to pull my trans out for a repair. While the trans is getting repaired, I have a 4L60E from a 95 Z28 that I am going to put back into the car so it is driveable. Question is, are they compatible? I know it will bolt up and everything, but what about the electronics?

 

Somebody has to know...

 

TTT, I want to get this in this week if it will work.

 

Although I am not a tranny expert, I will try to help you. If I'm in error at least I tried.

To the best of my Knowledge, the '95 up trannys used a pulse width modulated lockup & the '94 used basic on/off lockup control.

I believe the '94 trans will not work properly with the PWM lockup of the '95 computer, but I believe the opposite ('95 trans in a '94) will work OK.

At least this is something to base your research off of.

 

Thanks for the info. Looks like I'm going to swap my trans out tomorrow

 

My friend's 95 had a 94 4l60e in it and it kept setting off tcc lockup solenoid code, but worked fine otherwise.