The final drive on the 4t60 was 2.84.
I just found out the final drive on the 4t40 is 3.91.
You can see where this leaves me.
Instead of turning 1500 rpm at 55 I will be turning 2000.
and while I was doing 1750 at 65, I will be doing 2500.
What is this going to do to my mileage?.
Granted, I could climb a mountain in 4th gear...but still. OH, and the transmission shifts in the opposite order!!(4-3-2-1)
what gives?
I might have to see if the 4t60 will fit.