Without a doubt, Ford's 9-inch axle assembly has been the No. 1 choice for a performance rearend for a long time. The reasons were obvious enough—they were strong, plentiful, and affordable. A wide ...

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 ...

There was a time when the Ford 9-inch axle was synonymous with strength. It was the must-have upgrade, not only for four-wheelers but for hot rodders and drag racers, too. It was plentiful, virtually ...

There are only few go-to axles that we like to use when doing a budget axle swap. We typically look for these axles because they are strong, easy to find, inexpensive, and easy to modify. The Ford ...

In the automotive world, especially when it comes to off-road trucks and SUVs, differentials come up all the time. Is your differential locking, limited slip or open? Do you have a transfer case? One ...