RockNut JL/JK Rear Lower Billet Aluminum Control Arms Double Adjustable RockJock 4x4
RockJock's RockNut Billet Aluminum Johnny Joint Rear Lower Control Arm Set for the JL Wrangler and Unlimited and JK Wrangler and Unlimited provides you with extremely heavy duty, adjustable length control arms to replace your factory control arms.
Adjustable control arms are a must for aligning lifted vehicles to get your pinion angle specs. in check - and double adjustable arms make this job that much easier because neither end of the arm has to be removed from the vehicle for adjustment!
These arms are CNC machined from 7075-T6 aluminum, feature our patent pending RockNut locking nut technology and our 2 1/2 inch Johnny Joints with massive 1 1/4 inch RH and LH threads!
Arms are fully greasable, fully adjustable and feature machined-in wrench flats. Finished in clear anodize on the arms and gold zinc plating on the Johnny Joint ends.
Kit Fits:
- JL Wrangler Unlimited (4-door) - All Models
- JL Wrangler (2-door) - All Models
- JK Wrangler Unlimited (4-door) - All Models
- JK Wrangler (2-door) - All Models
Kit Includes:
- Johnny Joint Billet Aluminum Rear Lower Control Arms (Pair)
Adjustment Range:
- Closed - 19.350 in.
- Extended - 21.210 in.
Notes:
- Factory hardware is retained to attach arms to the axle and the chassis.
- Arms are fabricated from 2 in. solid 7075-T6 aluminum bar.
- RockNuts require a 1 7/8 in. wrench.
- Wrench flats require a 1 3/4 in. wrench.
- Adjusters feature 1 1/4 in.-12 RH/LH threads.
- Applicable Johnny Joint Tool for these Control Arms: CE-9110T
Parts List:
- RockNut (RH Thread): RJ-572200-1
- RockNut (LH Thread): RJ-572200-2
- Johnny Joint Adjuster End (RH Thread): CE-9114F
- Johnny Joint Adjuster End (LH Thread): CE-9114F-L
- Johnny Joint Rebuild Kit: CE-9110RK
- Johnny Joint Pivot Ball: CE-91102
- Zerk Fittings: CE-1103K21 and CE-9807RLAZ
Vehicle Fitment
| Year | Make | Model | Trim |
|---|---|---|---|
| 2007–2010 | Jeep | Wrangler | X |
| 2007–2010 | Jeep | Wrangler | Unlimited X |
| 2007–2017 | Jeep | Wrangler | Sahara |
| 2007–2025 | Jeep | Wrangler | Unlimited Sahara |
| 2007–2025 | Jeep | Wrangler | Unlimited Rubicon |
| 2007–2025 | Jeep | Wrangler | Rubicon |
| 2010–2025 | Jeep | Wrangler | Unlimited Sport |
| 2010–2025 | Jeep | Wrangler | Sport |
| 2011 | Jeep | Wrangler | Unlimited 70th Anniversary |
| 2011 | Jeep | Wrangler | 70th Anniversary |
| 2016 | Jeep | Wrangler | 75th Anniversary |
| 2016 | Jeep | Wrangler | Sport S |
| 2016 | Jeep | Wrangler | Unlimited Sport S |
| 2016 | Jeep | Wrangler | Unlimited 75th Anniversary |
| 2018 | Jeep | Wrangler JK | Sahara |
| 2018 | Jeep | Wrangler JK | Unlimited Sport S |
| 2018 | Jeep | Wrangler JK | Unlimited Sport |
| 2018 | Jeep | Wrangler JK | Unlimited Sahara |
| 2018 | Jeep | Wrangler JK | Unlimited Rubicon |
| 2018 | Jeep | Wrangler JK | Sport |
| 2018 | Jeep | Wrangler JK | Sport S |
| 2018 | Jeep | Wrangler JK | Rubicon |
| 2018–2019 | Jeep | Wrangler | Unlimited Moab |
| 2018–2025 | Jeep | Wrangler | Unlimited Sport S |
| 2018–2025 | Jeep | Wrangler | Sport S |
| 2021 | Jeep | Wrangler | 80th Anniversary |
| 2021 | Jeep | Wrangler | Freedom |
| 2021 | Jeep | Wrangler | Unlimited 80th Anniversary |
| 2021 | Jeep | Wrangler | Unlimited Freedom |
| 2021 | Jeep | Wrangler | Islander |
| 2021 | Jeep | Wrangler | Unlimited Islander |
| 2021–2023 | Jeep | Wrangler | Unlimited High Altitude |
| 2021–2023 | Jeep | Wrangler | Unlimited Sport Altitude |
| 2021–2023 | Jeep | Wrangler | Unlimited Sahara Altitude |
| 2021–2024 | Jeep | Wrangler | Willys Sport |
| 2021–2024 | Jeep | Wrangler | Unlimited Willys Sport |
| 2021–2024 | Jeep | Wrangler | Unlimited Rubicon 392 |
| 2021–2025 | Jeep | Wrangler | Unlimited High Altitude 4xe |
| 2021–2025 | Jeep | Wrangler | Willys |
| 2021–2025 | Jeep | Wrangler | Unlimited Willys |
| 2021–2025 | Jeep | Wrangler | Unlimited Sahara 4xe |
| 2021–2025 | Jeep | Wrangler | Unlimited Rubicon 4xe |
| 2022–2023 | Jeep | Wrangler | Unlimited High Tide |
| 2023 | Jeep | Wrangler | Freedom |
| 2023 | Jeep | Wrangler | Unlimited Freedom |
| 2023–2025 | Jeep | Wrangler | Unlimited Willys 4xe |
| 2024–2025 | Jeep | Wrangler | Unlimited Rubicon X 4xe |
| 2024–2025 | Jeep | Wrangler | Unlimited Rubicon X |
| 2024–2025 | Jeep | Wrangler | Rubicon X |
| 2024–2025 | Jeep | Wrangler | Unlimited Rubicon 392 Final Edition |
