All Trail Gear Housings

Shipping included.

After years of competition testing and engineering, we are confident that The Rock Assault 9 Axle Housing is the strongest 9″ axle housing on the market. This housing has been tested in W.E. Rock, CalRocs, and King of the Hammers, so we know it will stand up to the toughest terrain on earth.

We started with a 1/4″ formed shell for the center section made out of A572 Grade 50 Steel for increased strength. This is a high-strength, low alloy, structural steel plate with a minimum yield strength of 50,000 psi! All of this is attached to an equally strong 1/2″ face plate for anchoring the DOM axle tubes. The axle tubes are secured by the industry’s first 3-Point Attachment System, giving the tubes superior support and engagement into the center section. We also face the center section to ensure your differential mounts flush against the axle housing to prevent any leaks. Tube size options include 3”, 3.5”, or 4” OD in wall thicknesses of 1/4”, 3/8”, & 1/2” (1/2” available for 4” OD only) Our 4” OD versions are the strongest 9” axles you will find anywhere!