RockJock RJ-236200-101 Heavy Rear Antirock Sway Bar Kit for 07-18 Jeep Wrangler

Vehicle Fitment

• 2007-2018 Jeep Wrangler (JK & JK Unlimited) - rear suspension (all trims)

Features

• 11/8" diameter heat-treated chromoly torsion bar engineered for heavy duty rear sway control
• Forged chromoly sway bar arms built for rugged off-road performance and extended loads
• Fabricated steel frame brackets designed for bolt-on installation - no welding required
• Adjustable end links with sealed rod ends to allow articulation while maintaining sway bar control
• Delrin bushings for smooth movement, reduced noise and long service life
• Kit designed specifically for vehicles with heavy gear, roof-top tents or off-road loads to maintain stability
• Integration with front Antirock system delivers balanced traction and minimized body roll in extreme conditions
• Bolt-on installation using factory rear sway bar mounts and hardware for direct replacement ease

Specifications

• Torsion bar diameter: 1.125 in (≈11/8") chromoly steel
• Spline count: 28-spline bar ends for compatibility with kit arms
• Construction: 4130/heat-treated chromoly steel torsion bar; forged arms; fabricated brackets
• Finish: Powder-coat on bar and arms; plated hardware
• Application: Rear axle only for 2007-2018 Jeep Wrangler JK/Unlimited

Included Components

• 1x 11/8" diameter chromoly torsion bar
• 2x forged chromoly sway bar arms (left & right)
• 2x fabricated steel frame mounting brackets (LH & RH)
• 2x adjustable sway bar end link assemblies (pair)
• 1x bushing kit (Delrin bushings + hardware)
• 1x full hardware kit including bolts, washers, nuts, instruction sheet

Product Description

The RockJock RJ-236200-101 Heavy Rear Antirock Sway Bar Kit is specifically developed for the rear suspension of the 2007-2018 Jeep Wrangler JK/Unlimited. With a robust 11/8" chromoly torsion bar and forged arms, this kit is engineered for vehicles that carry heavy loads, utilize roof-top tents, or demand high-performance off-road articulation control. It replaces the factory rear sway bar to enhance stability, improve traction distribution across all four wheels, and reduce body roll in rugged terrain.

Featuring adjustable end links and sealed rod ends, the kit accommodates lift kits and increased travel while maintaining sway bar control. The bolt-on frame brackets and factory mounting footprint make installation straightforward, which is ideal for builders who want serious capability without full fabrication. However, due to the heavy rate of the bar, lighter unloaded vehicles may find the rear sway bar stiffer than expected. Always align and verify link geometry after installation.

Ideal for overlanders, off-road racers and Jeep JK owners who demand durability and articulation - but carry meaningful gear or weight. This kit allows full axle articulation without sacrificing stability under load. Note: Fitment confirmed through 2018; suitability for later models beyond 2018 is unconfirmed at time of listing.