Do you ever really consider everything there is to factor in when you lower a car and/or add adjustable suspension? There may be a lot more involved than you first imagined. Take, for instance, ...

Pitching the stock differential out from under a GM car in favor of a 9-inch Ford has always been the best way to step up the drivetrain for drag racing. Since the price of used 12-bolts has ...

When building a project car, nothing is worse than having to re-buy performance parts. This is especially true today when every hot rod dollar needs to be stretched as far as possible. For instance, ...

There are many reasons to run a high-pinion differential in a 4WD vehicle, and there are many reasons to run a Ford 9-inch axle. When used in the front of a vehicle, high-pinion differentials ...