RockJock Universal AntiRock Sway Bar Kit - Steel Arms, 36" Bar
ROKCE-9901-17
The RockJock Universal AntiRock Sway Bar Kit with Steel Arms is a complete weld-on sway bar system engineered for custom tube chassis, rock crawlers, Ultra4 race cars, trail rigs, and fabricated suspensions. Designed for builders who want improved stability without sacrificing articulation, the AntiRock sway bar keeps both sides of the suspension working together over uneven terrain—without the need for disconnects.
At the heart of the kit is a 36" heat-treated 4130 chromoly torsion bar measuring .770-inch in diameter, providing an excellent balance of body control and suspension compliance. Fabricated steel sway bar arms are available in 17", 18", 20", or bent 20" lengths, allowing you to tailor the effective spring rate and packaging to your specific chassis.
This universal fabricator kit includes nearly everything required for installation, including adjustable end links, Delrin bushings, weld-on axle tabs, mounting tube, and hardware. Simply weld it into your chassis and tune it for your application.
Includes:
- (1) 36" × .770" Heat-Treated 4130 Chromoly AntiRock Torsion Bar
- (1) 34" × 1.75" × .095" Wall Mounting Tube
- (1) Pair Fabricated Steel AntiRock Arms
- Available in 17", 18", 20", or Bent 20"
- (2) Adjustable Sway Bar End Links
- Delrin Pivot Bushings
- Weld-On Axle Tabs
- Complete Installation Hardware
- RockJock Arm Stickers
Specifications
| Specification | Details |
|---|---|
| Product Type | Universal AntiRock Sway Bar Kit |
| Sway Bar Length | 36" |
| Sway Bar Diameter | .770" |
| Sway Bar Material | Heat-Treated 4130 Chromoly |
| Arm Material | Laser-Cut & Welded Steel |
| Arm Length Options | 17", 18", 20", or Bent 20" |
| Spline Count | 25-Spline |
| Mounting Tube | 34" × 1.75" OD × .095" Wall |
| Installation | Universal Weld-On |
Fitment
Designed For:
- Rock Crawlers
- Rock Bouncers
- Ultra4 Race Cars
- Trail Rigs
- Custom Tube Chassis
- Buggies
- Fabricated Suspension Systems
Installation Notes:
- Universal weld-on fabricator kit
- Welding and fabrication required
- Not a direct bolt-on application
- End links may be trimmed or adjusted to suit ride height and suspension geometry
FAQ
Why Choose an AntiRock Sway Bar?
Unlike factory sway bars that are often disconnected on the trail, the RockJock AntiRock is engineered to remain connected at all times. It distributes suspension loads between both sides of the axle, reducing excessive body roll while allowing far greater articulation than conventional sway bars.
Choose the Right Arm Length
- 17" Arms — Highest effective spring rate with compact packaging.
- 18" Arms — Balanced performance for most trail and competition builds.
- 20" Arms — Softer effective rate with increased suspension articulation.
Built for Fabricators
This universal kit gives builders complete freedom to position the sway bar for optimal suspension geometry. The fabricated steel arms are designed to withstand years of abuse in rock crawling, Ultra4 competition, and aggressive trail use while providing predictable handling both on and off the trail.
