Trail Gear Rock Assault Trail Nine Axle Housing
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Rock Assault 9 Axle Housing
After years of competition testing and engineering, we are confident that The Rock Assault 9 Axle Housing is the strongest 9in 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 are so sure that this is the best axle housing in the industry, we are backing it up with our world famous no questions asked warranty.
We started with a 1/4in 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 1/2in face plate for anchoring the DOM axle tubes. The axle tubes are secured by the industryfts 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.
We also redesigned the Rock Assault 9 Axle Housing to allow for the use of both a 9in and 10in 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..
**MADE IN THE USA**
| Part Number | Description | Weight |
|---|---|---|
| 144022-1-KIT | 9in Housing 3/4 (3in - 1/4in Wall Tube) | 70lbs. |
| 144021-1-KIT | 9in Housing 3/4 (3in - 3/8in Wall Tube) | 82lbs. |
| 144050-1-KIT | 9in Housing (3.5in - 1/4in Wall Tube) | 75lbs. |
| 144049-1-KIT | 9in Housing (3.5in - 3/8in Wall Tube) | 84lbs. |
Note: The differential bolt pattern on 9in Axle Housings are NOT universal. Please check before cutting or welding
Note: If you are using our Rock Assault 9 Front Axle Housing, you will need to use a 10in ram for your steering setup.
Note: For an additional $75, we will install the inspection hole kit in the location shown.
Click here for Inspection Hole Kit


