03-31-2006, 10:26 PM
This has been gnawin' at me for a while now maybe yall can answer this. The 4T45-E is electronic controlled, that means a program tells it when to shift. What would happen if you put a different -E tranny in and let the old program shift it? I think the inputs for shifting are throtle position, speed and RPM. If this is true what differance would it make to swap to a different tranny?