RockJock 4x4 RockNut 21-Up Bronco Billet Aluminum Johnny Joint Rear Control Arm Set Double Adjustable RockJock 4X4 - RJ-182401-101
RockJock's RockNut Billet Aluminum Johnny Joint Control Arm Set for the 2021-up Bronco provides you with extremely heavy duty upper and lower, 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:
- 2021-up Bronco - All Models
Kit Includes:
- Johnny Joint Billet Aluminum Rear Upper Control Arms (Pair)
- Johnny Joint Billet Aluminum Rear Lower Control Arms (Pair)
Adjustment Range:
- Upper Arms Closed - 13.900 in.
- Upper Arms Extended - 16.000 in.
- Lower Arms Closed - 25.100 in.
- Lower Arms Extended - 27.000 in.
Notes:
- Factory hardware is retained to attach arms to the axle and the chassis.
- Upper arms are fabricated from 1 5/8 in. solid 7075-T6 aluminum bar.
- Upper Arm RockNuts require a 1 3/4 in. wrench
- Upper Arm wrench flats require a 1 1/2 in. wrench.
- Lower arms are fabricated from 2 in. solid 7075-T6 aluminum bar.
- Lower Arm RockNuts require a 1 7/8 in. wrench
- Lower Arm wrench flats require a 1 3/4 in. wrench.
- Adjusters feature 1 1/4 in.-12 RH and LH threads.
- Johnny Joint ends are fully rebuildable - should the need arise.
