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 ...

Currie Enterprises offers dozens of variations of Ford 9-inch housings. The polished-aluminum housing (shown) measures 7 inches deep and 20 inches wide. Available polished or natural, the housing ...

Let's face it, performance cars are all about discovering the weak link in the chain. As soon as you start making serious horsepower, what happens? You break a transmission or a rearend because it's ...

The Chevy versus Ford debate is as old as these legendary car companies. The debate within the debate has long been GM 12-bolt versus Ford 9-inch. In truth the GM 12-bolt is a far more efficient axle ...

Finishing the QA1 and Quick Performance install on "Frank." This DIY video completes the installation of a QA1 4-link suspension kit and a custom-built 9-inch rearend from Quick Performance.