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Reduce rear pinion-angle change through the Gladiator suspension cycle
RockJock RJ-151405-103 is built for 2020-2026 Jeep Gladiator JT, all models. Optimized for 2.5- to 3.5-inch lifts; larger lifts may receive reduced geometry benefit. Compatible with factory or application-correct adjustable control arms. Final compatibility depends on matching every dimension, mounting point, moving component, and clearance in the intended suspension system.
Key Features
- RJ-151405-103 relocates the rear upper control-arm axle mount
- Bolt-on installation uses the factory frame brackets
- Designed around 2.5- to 3.5-inch lift geometry
- Works with factory or compatible adjustable control arms
- Semi-gloss black brackets include all required hardware
Fitment
| Fitment Type | Verified Application | Required Checks |
|---|---|---|
| Dimension and system specific | 2020-2026 Jeep Gladiator JT, all models. Optimized for 2.5- to 3.5-inch lifts; larger lifts may receive reduced geometry benefit. Compatible with factory or application-correct adjustable control arms. | Confirm exact dimensions, mounting hardware, geometry, loads, articulation, component condition, and full suspension and steering clearance |
Specifications
| Detail | Value |
|---|---|
| Product Type | Control Arm Geometry Brackets |
| Manufacturer Part Number | RJ-151405-103 |
| Vehicle | 2020-2026 Jeep Gladiator JT |
| Position | Rear upper control-arm axle mounting points |
| Recommended Lift | 2.5 to 3.5 inches |
| Installation | Bolt-on |
| Finish | Semi-gloss black |
What's Included
- One left and one right RJ-151405-103 geometry-bracket assembly
- Required bolts, washers, nuts, and steel spacers
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 JT rear upper adjustable control arms
- RockJock JT rear lower adjustable control arms
- Application-matched Gladiator lift springs
FAQ
What is the RJ-151405-103?It is the RockJock control arm geometry brackets described in the Specifications table for the stated dimension-based application.
What problem do these brackets address?They reduce the dramatic rear pinion-angle drop that occurs as the Gladiator suspension cycles.
Which lift height is preferred?RockJock optimizes the brackets for 2.5- to 3.5-inch lifts.
Can they be used with a taller lift?Yes, but RockJock states that the geometry benefit diminishes as lift height increases.
Do they require welding?No. The brackets bolt into the factory control-arm bracket locations.
Can factory control arms remain?Yes. RockJock permits factory arms or compatible adjustable arms.
Are both sides included?Yes. The kit includes right- and left-side bracket assemblies.
Is hardware included?Yes. The required installation hardware and spacers are included.
Installation Instructions
- Verify the package label and manufacturer part number RJ-151405-103 before removing, cutting, or installing components.
- Confirm the vehicle is a 2020-2026 Gladiator and record lift height, control-arm type, and current pinion angle.
- Support the vehicle and rear axle safely before unloading the upper control arms.
- Remove the applicable factory hardware without allowing the axle housing to rotate unexpectedly.
- Assemble the left and right bracket sets into the factory locations with the supplied spacers and hardware.
- Reconnect the upper control arms at the corrected mounting points.
- Torque every fastener using the current RockJock instructions and vehicle specifications.
- Cycle the suspension, verify driveshaft and brake-line clearance, check pinion angle, and reinspect torque after initial use.
California Proposition 65 Warning: Cancer and reproductive harm. See www.P65Warnings.ca.gov.
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