How do I adjust the pinion angle with these control arms?

The arms feature RH/LH threaded adjuster ends. You can lengthen or shorten the arm by turning the adjuster while it's installed on the vehicle, allowing you to dial in the correct pinion angle without removing the arm.

What is a Johnny Joint and why is it important?

A Johnny Joint is a type of rod end that allows for a very large range of motion, or articulation. This is important for off-roading as it helps keep your tires in contact with the ground over rough terrain, improving traction and stability.

Do these control arms come with all the necessary hardware for installation?

The control arms are designed as a direct replacement for stock parts. While they include the arms and Johnny Joints, it's always recommended to refer to the manufacturer's installation instructions for a complete list of any additional hardware or tools that may be required.

Specifications

Brand: RockJock
Part #: CE-9807RUAB
UPC: 810038153353

RockJock JK Johnny Joint Adjustable Control Arms Rear Upper Double Adjustable Greasable Pair

Name: RockJock JK Johnny Joint Adjustable Control Arms Rear Upper Double Adjustable Greasable Pair
Brand: RockJock
SKU: rockjock-rockjock-jk-johnny-joint-adjustable-control-arms-rear-upper-double-adju-t14-565509
Price: 506.88 USD
Availability: BackOrder

$506.88

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 2007-2025 Jeep Wrangler. RockJock rear upper adjustable control arms with greasable Johnny Joints for improved articulation.

Key Features

Fits 2007-2025 Jeep Wrangler JK and Wrangler Unlimited.
Double adjustable design allows for pinion angle correction after suspension lifts.
Features greasable Johnny Joint rod ends on both ends for maximum articulation.
Constructed from 1 1/2 inch O.D. solid steel bar for a strong build.
Finished with a semi-gloss black powder coat for durability.
Designed as a direct replacement for stock rear upper control arms.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

If you're working on a Jeep Wrangler JK, especially one that's seen a suspension lift, these rear upper adjustable control arms from RockJock are a solid choice. They replace your stock upper arms and are designed to let you fine-tune your pinion angle after a lift is installed, all without having to remove the arms from the Jeep. This adjustability also means you can adapt the arms if you decide to change your lift height down the road, saving you from buying new arms later.

What really sets these apart is the use of RockJock's own Johnny Joint rod ends on both ends of the arms. These are well-known for allowing a huge amount of articulation, which is crucial for off-roading to keep your tires on the ground over uneven terrain. The arms themselves are built from 1 1/2 inch O.D. solid steel bar, giving them a strong foundation, and they're finished with a semi-gloss black powder coat to help resist corrosion. The greasable design means you can easily service the Johnny Joints to keep them working smoothly for a long time.

This pair includes everything you need for the rear upper position. For even more articulation from your front differential, RockJock suggests adding their CE-9102JK Johnny Joint kit.