Rock Assault™ Rear Axle Housing

Rock Assult Rear Axle Housing

Trail-Gear, Inc introduces a new concept to axle housing design.  This exclusive design features axle tubes that have been offset above the housing centerline.  The inner axles ride near the bottom of the axle tubes rather than in the center.  The results are an increase of  3/8" ground clearance under the axle tubing. Axle tubes are made from ¼” thick DOM tubing.

The heavy-duty, press formed, 1/4" plate steel center section shell is specially shaped to ensure a minimum of 3/4" additional clearance under the differential.  The differential mounting surface is made from ½” plate steel to ensure studs can not pull out, even under heavy loads.  The outer offset flanges are made from 4130 Chromoly to prevent distortion or bending.  Housings are precision alignment checked using start-of-the-art, 3D digital imaging equipment.

The Rock-Assault axle housings use stock or aftermarket 1986-1995 Toyota Pickup/4Runner axle shafts.  An optional fill / inspection cap can be installed for an additional fee.  Additional lengths as well as front applications will be available soon.

Overall housing length is 51 3/8" mounting flange to mounting flange. Empty housing is 54 lbs. Includes drain plug. Spring perches, shock mounts, and vent not included. Differential stud kit and RTV silicon are included and are recommended for use with this axle. Unpainted bare-metal, oiled finish to prevent rusting.  We recommend degrease housing inside & out before installation and painting.

The original design concept for this axle was created by Jason (Locktup) Stanley. This rugged, high clearance design proved to be extremely tough and helped Team Trail-Gear win first place in the 2007 We-Rock F-Toy Series. Thanks Jason!

Add To Cart Rear Axle Housing, IFS width, $399, 140187-1-K
Add To Cart Rear Axle Housing, IFS width, Electric Locker Style, $399, 140210-1-K
Add To Cart Rear Axle Housing, IFS +2" width, $399, 140211-1-K
Add To Cart Rear Axle Housing, IFS +2" width, Electric Locker Style, $399, 140212-1-K

Rock Assult Rear Axle Housing

E-Locker Style Mount
Electric Locker Version Available


Rear Axle Upper Link Mount

We can also set up your rear Rock Assault axle housing with an upper link mount kit. This bracket is designed to accommodate 1.25" Johnny Joints. The upper link mount kit can be ordered loose as a do-it your-self install, or it can be ordered installed onto a housing if you are ordering a housing at the same time.

Note this bracket is cut to fit the Trail-Gear Rock Assault rear axle housing and will not fit a factory stock rear housing. This product is not compatible with the Trail-Gear "Creeper Breather" diff vent kit.

Add To Cart Axle Housing Upper Link Mount Bracket - Loose, $129, 110119-1
Add To Cart Axle Housing Upper Link Mount Bracket - Installed, $179 140189-1-K
 

 


Fill / Inspection Cap

Extra large differential fill and inspection cap. Designed to allow quick access for  inspecting the ring gear. Features 1.5" diameter access hole. Threaded aluminum cap uses a rubber o-ring for a tight seal. Installation requires cutting a hole in to the top of the differential housing and welding on a threaded bung. Kit includes: one threaded bung, one cap and one o-ring. Plug kit can be ordered loose as a do-it your-self install or it can be ordered installed into a housing if you are ordering a housing at the same time.

Add To Cart Rock Assault Inspection Plug Kit - Loose, $25, 140184-1-K
Add To Cart Rock Assault Inspection Plug Kit - Installed, $75, 140188-1-K

 

Fill / Inspection Cap
Also See Links, Link Ends and Link Brackets