Why do I need adjustable rear upper control arms after lifting my Jeep?

When you lift a Jeep, the axle housing rotates, changing the pinion angle of the driveshaft and the caster angle of the suspension. Adjustable control arms allow you to correct these angles back to their optimal positions, which helps prevent driveline vibrations and improves steering and handling characteristics.

What is a Johnny Joint and why is it important?

A Johnny Joint is a type of high-angle, maintenance-free spherical bearing known for its durability and ability to handle extreme articulation. It allows for significant movement between the axle and the frame, which is beneficial for off-road driving and ensures the suspension can work effectively.

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

This product includes the adjustable rear upper control arms as a pair. It is recommended to consult the manufacturer's installation guide or contact Synergy Mfg. directly to confirm if any additional hardware is required for your specific lift kit setup.

Synergy 2007+ Jeep Wrangler JK/JKU/JL/JLU Adjustable Rear Upper Control Arms - Pair

Specifications

Brand: Synergy Mfg
Part #: 8854-01
UPC: 887753146236

Synergy 2007+ Jeep Wrangler JK/JKU/JL/JLU Adjustable Rear Upper Control Arms - Pair

Name: Synergy 2007+ Jeep Wrangler JK/JKU/JL/JLU Adjustable Rear Upper Control Arms - Pair
Brand: Synergy Mfg
SKU: synergy-mfg-synergy-2007-jeep-wrangler-jk-jku-jl-jlu-adjustable-rear-upper-contr-t14-475096
Price: 500.00 USD
Availability: BackOrder

$500.00

On Backorder

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

Synergy 2007+ Jeep Wrangler JK/JKU/JL/JLU Adjustable Rear Upper Control Arms - Pair. Solid steel construction for improved suspension geometry.

Key Features

Fits 2007 and newer Jeep Wrangler JK, JKU, JL, and JLU models.
Adjustable design allows for correction of pinion angle and caster after suspension lift.
Constructed from solid steel tubing for a strong and durable component.
Features a heavy-duty, greaseable joint for precise alignment adjustments.
Includes a forged Johnny Joint for reliable articulation.
Sold as a pair for the rear of the vehicle.

These control arms are designed to fit 2007 and newer Jeep Wrangler JK, JKU, JL, and JLU models.

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Product Details

If you're lifting your Jeep Wrangler JK, JKU, JL, or JLU, adjusting the rear upper control arms is a key step to getting your suspension geometry dialed in. These adjustable arms from Synergy Mfg. help you correct pinion angle and caster after a lift, which is crucial for proper driveline operation and handling. Getting this right can prevent vibrations and ensure your Jeep drives smoothly.

These control arms are built from solid steel tubing, giving them a strong foundation to handle off-road use and the stresses of lifted suspension. The adjustability comes from a heavy-duty, greaseable joint on one end and a forged Johnny Joint on the other, allowing for precise alignment adjustments. This setup is designed to fit right onto your Jeep without needing extensive modifications, making the alignment process more straightforward after installing a lift kit.

When you're lifting your Jeep, it's important to address the suspension geometry changes. These adjustable upper control arms are a popular choice for Jeep owners looking to fine-tune their suspension setup for better on-road manners and off-road performance. They are sold as a pair for the rear of your vehicle.