I have a 89 camaro with a 700r4/4l60 Trans with a Mechanical Spedo cable, I also have a 4l60E trans from a 95 z28, Is there any way i can put the 95 4l60E trans into my 89 Camaro, What would i need to change to make it work?

E = electronically controlled

All you need, is the wiring and computer to control it.

I dont want to do that though, Can i change some things in the trans to make it not electronic?

No