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 ...

You probably noticed this is part two of the story dealing with installing a Chassis Engineering parallel leaf spring (with sway bar) kit, a John's Industries 9-inch ...

Drag racing is a brutal sport. Launching a car on a sticky track is hard on drivetrains and losing is hard on egos. If something breaks, not only does it hurt your wallet—it means you’re loading up ...

Detailing a rear axle is a major part of a Mustang concours restoration, right up there with the engine and the front suspension in complexity. There are so many parts, colors, codes, machined ...