Rock Assault™ 9 Rear Axle Housing w/Shafts
The Rock Assault™ 9 is now available as a complete welded assembly from flange to flange including the Unit Bearing Pockets The new Rock Assault™ 9 is available in 3 great sizes to fit all applications. Designed for Wheel Mount Surfaces (WMS) of 60", 65", and 68". We have made it easier for your axle upgrade or custom build. The assembly will also include the inner housing seals.
We started with a 1/4" formed shell for thecenter section made out of A572 Grade 50 Steel for increased strength. This isa high-strength, low alloy, structural steel plate witha minimum yield strength of 50,000 psi! All of this is attached to an equallystrong 1/2" face plate for anchoring the DOM axle tubes. The axle tubesare secured by the industry's first 3-Point Attachment System™, giving thetubes superior support and engagement into the center section. We also face thecenter section to ensure your differential mounts flush against the axlehousing to prevent any leaks.
We also redesigned the Rock Assault™ 9 Axle Housing to allow for the use of both a 9" and 10" 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..
Now available for purchase with Trail-Gear’s true, full-float 35-Spline Axle Shaft made from heat-treated 4340 Chromoly. For more information about TG’s 35-Spline Axle Shafts click here.
Also available in 3.5" O.D. axle tubing
*Custom sizes available. Please call to place your order for a custom-size axle housing.*
**MADE IN THE USA**
NOTE: WMS (Wheel Mount Surface Dimensions) reached using TG Unit Hub, TG# 144012-K, and 1/4"Brake Hats. Using other components will vary final results. Pinion is offset 2.125 to allow for same size axle shafts for passenger, and driver side.
Note: The differential bolt pattern on 9" Axle Housings are NOT universal. Please check before cutting or welding
Note: For an additional $82.69, we will install the inspection hole kit in the location shown.
Click here for Inspection Hole Kit
- 1/4" formed shell for the center section made out of A572 Grade 50 Steel
- Minimum yield strength of 50,000 psi on the center section
- 1/2" face plate
- Axle tubesare secured by the industry's first 3-Point Attachment System™, giving thetubes superior support and engagement into the center section
- Fits both a 9" and 10" differential
- 35-Spline Axle Shaft made from heat-treated 4340 Chromoly
- Designed for Wheel Mount Surfaces (WMS) of 60”, 65” and 68”
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