Quote:

Quote:

Surprised several years ago a buddy talked me into replacing my 3.91's with 3.23's. Ran 12.20's and 112 w/3.91's and 12.40's at 111 w/3.23's. Mileage went from 9 to 13 one the road, 65mph. Motor makes 511hp 580tq 500in...it doesn't care much for a deep gear. Torque motor.




you lost a 1/4 second with the gear change! thats a lot!!!!




1/5th the way I calculate it. For the mileage increase, and possibly feeling better when taking it on the freeway, not that bad of a sacrifice..