The now-standard Ford 9-inch rearend gives you a "means business" aura. It's strong, it looks good, there are endless new and used parts available for it and, most importantly, people think you're ...

Why has the Ford 9-inch axle become the go-to axle for Ultra4 racing and hardcore use? It has a lot to do with the evolution of the axle assembly from the factory-built unit, to custom-fabricated axle ...

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 ...