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 ...

For over half a century, the Ford 9-inch rearend has been the king of aftermarket axle upgrades. Few other axles enjoy the same amount of bolt-on and custom componentry. The Ford 9-inch is a great ...

There was a time long ago when you had to hit the junkyard if you needed the strength, reliability, and easy gear-changing convenience of a Ford 9-inch rear axle. They were dark days, indeed. But in ...

If you’ve been messing with classic Mustangs for as long as a lot of us with graying temples, you understand how challenging it has been to find a Ford 9-inch rear with all the right parts for your ...