JK Adjustable Control Arms - Front Lower

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JK Front Lower Control Arm

The RockJock® Johnny Joint® Front Lower Control Arm Set for all Jeep® JK Wrangler & Unlimited models provides you with extremely heavy duty, adjustable length control arms to replace your factory control arms. Adjustable arms are a must for aligning lifted vehicles to get your caster specs. in check!
These arms feature RockJock’s 2 1/2" Johnny Joints, the original and most durable high-articulation urethane suspension joint on the market. Johnny Joints feature a smooth steel ball that pivots inside a proprietary urethane shell to provide over 30 degrees (per joint) of quiet, shock dampening articulation - without the excessive deflection found in soft rubber-based “flex joints”. Johnny Joints deliver a smooth, comfortable on-road ride with the ultimate in off-road capability. They are so trusted, that they are used by multiple commercial suspension companies, for both street and off-road suspension systems. 
Arms are fully greasable via zerk fittings. Finish is semi-gloss black powder coat on the arms and gold zinc plating on the Johnny Joint adjuster ends.

Kit Fits:

  • Jeep Wrangler JK Unlimited (4-door) – All Models
  • Jeep Wrangler JK (2-door) – All Models

Kit Includes:

  • Johnny Joint Front Lower Control Arms (Pair)

Adjustment Range:

  • Closed – 22.060”
  • Extended – 23.440”


  • Factory hardware is retained to attach arms to the axle and the chassis.
  • Arms are fabricated from 1 5/8” x .250” wall DOM steel tubing.
  • Adjusters feature 1 1/4”-12 RH threads.
  • Johnny Joints require non-synthetic, hi-moly lube grease such as our CE-9013G
  • Applicable Johnny Joint Tool for these Control Arms: CE-9110T

Parts List:

  • Johnny Joint Adjuster End (RH Thread): CE-9114
  • Johnny Joint Rebuild Kit: CE-9110RK
  • Johnny Joint Pivot Ball: CE-91102
  • Zerk Fitting (on Arms & Johnny Joints): CE-1103K21
Brand Rock Jock 4x4
Shipping Weight 7.0000kg
Shipping Width 0.560m
Shipping Height 0.080m
Shipping Length 0.140m
Shipping Cubic 0.006272000m3

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