Trail Gear Rock Assault Trail Nine Axles are the culmination of years of competition testing and engineering. Trail Gear Rock Assault Trail Nine Axles are guaranteed by Trail Gear to be the strongest 9" and 10" axle housing on the market. The Trail Gear Rock Assault Trail Nine Axles have been tested extensively in W.E. Rock, CalRocs, and King of the Hammers, so you know it will stand up to the toughest terrain on Earth.

Trail Gear Rock Assault Trail Nine Axles start life as a 1/4" formed A572 Grade 50 Steel center section shell, providing immediate increased strength. This high-strength, low alloy, structural steel plate provides a minimum yield strength of 50,000 psi! All of this is bolted to an equally strong 1/2" face plate for anchoring the DOM axle tubes. The axle tubes on the Trail Gear Rock Assault Trail Nine Axles are secured by the industry's first 3-Point Attachment System, giving the axle tubes superior support and engagement into the center section. The center section is faced to ensure differentials mount flush against the axle housing to prevent any leaks.