The Rock Assault 9 Rear Roller Kit is now available. Get started on your build, or upgrade with greater savings.

We have redesigned the Rock Assault 9 Axle Housing to allow for the use of both a 9.0 Inch and 10.0 Inch differential! This will give you the option to create an even stronger axle and give you that piece of mind knowing you have the strongest axle under your rig.

We are so confident our Rock Assault 9 is the strongest on the market that we are backing the product with our legendary No Questions Asked Warranty. The differential bolt pattern on 9.0 Inch Axle Housings are not universal. Please check before cutting or welding.

The Rock Assault 9 Rear Roller Kit is now available. Get started on your build, or upgrade with greater savings. Minimum 17.0 Inch wheel required for Caliper Mount.
Kit Contains:

• Rock Assault 9 Axle Housing
• Unit Hubs with included lug nuts
• Unit Bearing Pockets
• Rock Assault 9.0 Inch Seal Housing Kit
• Rock Assault 9 Fully Loaded Brake Kit
• Trail Gear 14.0 Inch Brake Rotors
• Trail Gear Brake Hats fitting 6 by 5.5 Inch and 5 by 5.5 Inch Lug Patterns
• Wilwood Calipers
• Polymatrix Type E Brake Caliper Pads
• Rock Assault 9 Caliper Mount fitting Spidertrax 5 and 6 Lug Hat and 14.0 Inch Rotors

Specs:

• Warranty: Lifetime Warranty
• Sold As: Kit
• Finish: Bare
• Color: Grey
• Outer Diameter: 3.5 Inch
• Wall Thickness: 0.25 Inch
• Bolt Size: 0.5 Inch-20
• Location: Rear
• Fits: Rock Assault 9 Rear Axle Housing