JK APEX Rear Axle Truss

The JK APEX Rear Axle Truss stiffens the rear housing on your Jeep Wrangler JK or JKU so it can stand up to bigger tires and hard trail abuse. Its patent-pending peaked APEX top adds more rigidity than a flat-top truss while coming in under 10 lbs, and the pre-bent design drops straight onto the axle for a fast weld-on install.

Key Features

• Patent-pending APEX peaked-top profile stiffens the housing more than a flat-top truss
• CNC laser-cut in-house from 3/16" mild steel, weighing under 10 lbs
• CNC-bent long seams mean you drop it on the axle and weld, with no puzzle-piece assembly
• Modeled from Dana and Jeep 3D data for fit and clearance
• Roughly 70% less welding than older truss designs, reducing heat warp

Fitment & Compatibility

Designed for the Jeep Wrangler JK and JKU rear axle housing (2007-2018), a common reinforcement when moving to larger tires. It works with RK 3Link mounts (part JK4430), though the gussets on the end of that bracket may need a slight trim. Pair it with the JK APEX Front Axle Truss for a matched pair, add the JK APEX Raised Track Bar Bracket to correct geometry, or go bigger with the JK 1-Ton APEX Rear 9-Inch Truss Swap Kit.

Specifications

What's in the Box

• 1 x JK APEX rear axle truss (bare steel, weld-on)

Frequently Asked Questions

Which Jeep does this fit?
It is designed for the rear axle of the Jeep Wrangler JK and JKU (2007-2018).

Will it work with aftermarket link brackets?
Yes. It is compatible with RK 3Link mounts (part JK4430); expect to trim the gussets on the end of that bracket slightly for clearance.

Does it require welding?
Yes. It is a weld-on truss for competent welders. MIG welding with moderate pre-heat and post-heat is recommended, alternating from side to side to limit warping.

Why is it so light?
The peaked APEX shape provides stiffness through geometry, so the 3/16" plate truss stays under 10 lbs.