How big is the rear differential on a Ford F-150?
How big is the rear differential on a Ford F-150? Only 1 left! 2014 Ford F150 Rear Differential 9.75 Axle size. 3.73 Ratio. Electronic Locking What should the axle ratio be on a Ford F-150? Since the F-150 does have a 10 speed transmission I would prefer a more agressive gearing (3.73:1). I think there should be an option for an even more agressive gearing with the 3.3 something like a 4.10:1. Since the F-150 does have a 10 speed transmission I would prefer a more agressive gearing (3.73:1). Which is the best rated Ford F150 truck? The 2003 Ford...