-
I was watching trucks one day and they put a second overdrive on a truck and it was controlled by a switch wired in the cab. Would it be possible to put a second overdrive on these 4l60e transmissions to reduce the RPM's on the highway. It connects between the transmission and the drive shaft.
-
-
Yes, but the 60E already has a decent 30% OD. If you run a 55% OD in a truck you won't have enough grunt to keep going up a hill on stock type gearing.
You'd need around a 4.56:1 or a 4.88:1 to take advantage.
-
wow that is expensive. I did not realize how expensive that was.
