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The Rock Assault 9™ Roller Kit is now available. Get started on your build, or upgrade with greater savings. Roller Kits come with:

* Rock Assault 9™ Axle Housing (Choice of tubing 3” ¼” Wall, or 3” 3/8” Wall)
* Unit Hubs (lug nuts included)
* Unit Bearing Pockets
* Rock Assault 9” Seal Housing Kit.
* Rock Assault 9™ Brake Caliper Mount Kit

Build with confidence knowing this housing has been tested on the Trail Gear “Moon Buggy”. Look for it on the newest Trail Gear Competition Buggy, “Tweaky”. We are so confident our Rock Assault 9™ is the strongest on the market that we are backing the product with our legendary No Questions Asked Warranty.

Available Options

* Rock Assault 9™ Roller Kit, 3"-1/4" Wall, 144076-KIT, $Too Low
* Rock Assault 9™ Roller Kit, 3"-3/8" Wall, 144077-KIT, $ to post
* Rock Assault 9™ Roller Kit, 3.5"-1/2" Wall, 144104-KIT, $ must call for
* Rock Assault 9™ Roller Kit, 3.5"-3/8" Wall, 144105-KIT, $ best price!

Rock Assault™ 9 Rear Axle Shafts 35-Spline
Trail-Gear is now offering a true, full-float 35-Spline Axle Shaft. Made from heat-treated 4340 Chromoly, these axle shafts have been engineered to work with the Trail-Gear Rock Assault™ 9 Rear Axle Housing with Unit Bearing Pockets (Unit Bearings sold separately). These shafts are designed to fit the Rock Assault™ 9 housings; available in 60”, 65” and 68” WMS, whether you are running an ARB or a Detroit Locker. These shafts will also work with axle housing that have similiar dimensions as listed below. The shafts have a tapered design that allow for more yield during extra torque load letting them flex without breaking. These axle shafts build on the Trail-Gear reputation for strength and durability and come backed with Trail-Gear’s No-Questions-Asked, Lifetime Warranty. Sold individually, in pairs or as part of an axle housing kit.

Trail-Gear’s 9" Seal Housing Kit is machined from billet aluminum, has three o-rings on the outer surface of the seal housing, and has a double seal on the inside. The three outer o-rings keep the outer portion of the seal housing sealed up so that no fluid can leak or flow between the axle tube and the seal housing itself. The seal housing is tapered on the inside so that the axle shaft is lined up with the seal housing as it is installed to prevent damage to the seals or seal housing. The seal housing itself is secured in place with a set screw so that it cannot move or be pushed out of place when the axle shafts are installed. The inside of the seal housing has two seals installed to ensure that even while rock crawling on your side or racing at high speeds, no fluid leaks through or bypasses our seals. This will keep your fluid in your differential where it belongs, and not on your breaks and tires where it can create a dangerous situation.

The seals themselves are manufactured from a specially blended, high performance synthetic rubber that is so flexible that they can effectively seal any axle deflection, axle misalignment, or axle run out issues that may occur. The seal housing is shipped completely assembled with both seals installed, and replacement seals are also available, making the seal housing completely rebuildable. Our 9" seal housing will accommodate a 27 spline to a 35 spline axle shaft.

Seal housings are sold separately and two are needed to complete one axle housing. Seal housings are available for 3" and 3 1/2" tubing with either 1/4" or 3/8" wall thickness, and fit most of the popular aftermarket 9" axle housings being offered.

Available Options:

* 9" Seal Housing, 3" x 3/8" Wall, 144040-KIT, $Too Low
* 9" Seal Housing, 3" x 1/4" Wall, 144041-KIT, $ to post price
* 9" Seal Housing, 3 1/2" x 3/8" Wall, 144042-KIT, $ must call for
* 9" Seal Housing, 3 1/2" x 1/4" Wall, 144043-KIT, $ best price period!
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