Following the change from the Tremec transmission (6-speed manual) to the 6L80e (6 speed auto), the gears in the Ford rear end needed to be changed from 4.56 to 4.11 gear ratio.
Following the change from the Tremec transmission (6-speed manual) to the 6L80e (6 speed auto), the gears in the Ford rear end needed to be changed from 4.56 to 4.11 gear ratio.