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Create tire and chassis clearance with a strong offset billet arm pair
RockJock RJ-202011-101 is built for Universal 25-spline Antirock torsion-bar applications and specified RockJock JL, JT, and JK front Antirock kits. Not compatible with RockJock 36-inch by 1-inch or 40-inch by 1-inch sway bars. Final compatibility depends on matching every dimension, mounting point, moving component, and clearance in the intended suspension system.
Key Features
- CNC-machined 7075-T6 billet aluminum construction
- 15-inch overall length with a 2.5-inch offset bend
- Standard 25-spline mounting interface
- Two 1/2-inch end-link mounting holes adjust leverage
- Clear-anodized finish and included arm hardware
Fitment
| Fitment Type | Verified Application | Required Checks |
|---|---|---|
| Dimension and system specific | Universal 25-spline Antirock torsion-bar applications and specified RockJock JL, JT, and JK front Antirock kits. Not compatible with RockJock 36-inch by 1-inch or 40-inch by 1-inch sway bars. | Confirm exact dimensions, mounting hardware, geometry, loads, articulation, component condition, and full suspension and steering clearance |
Specifications
| Detail | Value |
|---|---|
| Product Type | Sway Bar Arms |
| Overall Length | 15 inches |
| Material | 7075-T6 billet aluminum |
| Main Thickness | 3/4 inch |
| Tip Thickness | 3/8 inch |
| Offset | 2.5 inches |
| Spline Count | 25 |
| Near Link-Hole Radius | 11.75 inches |
| Far Link-Hole Radius | 12.75 inches |
| Pair Weight | 2.15 lb |
What's Included
- One pair of 15-inch offset billet aluminum Antirock arms
- One matching arm hardware pack
About RockJock
RockJock develops connected Antirock sway bar systems, serviceable Johnny Joints, steering components, and suspension hardware for trail control and articulation. Its replacement and universal components are specified by exact dimensions so builders can preserve safe geometry and serviceability.
Related Parts
- RockJock 25-spline Antirock torsion bars
- RockJock double-shear end-link bracket kit
- Application-length adjustable sway bar end links
FAQ
What is the RJ-202011-101?It is the RockJock sway bar arms described in the Specifications table for the stated dimension-based application.
Which torsion bars accept these arms?They fit compatible RockJock 25-spline torsion bars, subject to the two stated 1-inch-bar exclusions.
Which bars are excluded?RockJock excludes its 36-inch by 1-inch and 40-inch by 1-inch sway bars.
Why are the arms offset?The 2.5-inch bend creates application-dependent clearance where a straight arm cannot be packaged safely.
How is leverage adjusted?Two 1/2-inch link holes place the end link at 11.75 or 12.75 inches from the spline center.
Do the arms fit JL and JT front kits?They are listed for selected RockJock JL and JT front Antirock kits, but the exact kit part number and clearance must be confirmed.
Do they fit JK front kits?They are listed for selected RockJock JK front Antirock kits, subject to exact bar and kit compatibility.
Is end-link hardware included?The arm hardware pack is included; links, double-shear brackets, torsion bar, bushings, and vehicle mounting hardware are separate unless listed in a complete kit.
Installation Instructions
- Verify the package label and manufacturer part number RJ-202011-101 before removing, cutting, or installing components.
- Confirm the exact RockJock torsion bar has 25 splines and is not one of the excluded 1-inch bar configurations.
- Measure arm sweep, offset direction, end-link angle, tire clearance, frame clearance, steering, hoses, wiring, and full suspension travel.
- Install each arm on clean undamaged splines in the orientation required by the engineered application.
- Install the included retaining and pinch hardware using the current RockJock procedure.
- Select the near or far 1/2-inch link hole based on the required leverage and safe link geometry.
- Cycle the complete suspension and steering to verify the arms and links cannot bind, contact, or go over center.
- Tighten all hardware to the applicable specifications and reinspect spline engagement and fastener torque after initial use.
California Proposition 65 Warning: Cancer and reproductive harm. See www.P65Warnings.ca.gov.
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