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 ...

From the archives: Legendary tech guru Marlan Davis explains why the 9-inch Ford is the strongest rearend out there—it’s all due to “hypoid distance.” To celebrate HOT ROD's 75th anniversary, we ...