The rearend of a racecar is what distributes the horsepower to the tires that meet with the track, and if you’re making a lot of power you better be sure that rearend is stout. There are many ways to upgrade a stock or aftermarket-style rearend to accept abuse, but ultimately they can succumb to the torture of a racing environment. To help avoid a driveline failure you can upgrade to a FAB9-style rearend from Chris Alston’s Chassisworks that will take just about any beating you hand it and ask for more.

Most standard rearend housings are made in a casting process and are one solid piece of material. They can be braced for additional strength and hold up well for most applications, but when you really start to apply power they can flex, causing internal parts to wear or even break. For most racers, a cast-style rearend will work fine, but if you want to put down big power and not worry about parts failing a fabricated rearend is the way to go.

To solve the shortcomings of a standard rearend, Chris Alston’s Chassisworks designed their own fabricated nine-inch style rearend known as the FAB9. This unit is made of plate steel that is welded together in several sections to provide additional strength and support for the rearend and its internal components. The tubes that are home to the axles get welded to the bulkhead inside of the housing along with additional bracing for added strength.

Chris Alston’s Chassisworks makes their FAB9 rearends in a variety of configurations and styles to fit pretty much any car or truck. The rearends can even be purchased in an unwelded form so you can finish them at home to save some money. Check out all the options for the FAB9 rearend right here on the Chris Alston’s Chassisworks website to learn more about this beefy rearend option.