JKS JKS1665 Rear Upper Adjustable Control Arms for 07-18 Jeep JK

Vehicle Fitment

• 2007-2018 Jeep Wrangler JK (Sport, Sahara, Rubicon, Unlimited)

Features

• Rear upper adjustable J-Flex control arms for suspension geometry correction
• CNC-formed DOM steel tubing for strength and off-road durability
• Forged adjustable flex end with jam nut for fine-tuning length
• Fully rebuildable and greaseable flex joint ends
• Factory-style rubber bushings on non-adjustable ends to reduce noise and vibration
• Powder-coated finish resists corrosion and wear
• Adjustable length to correct caster and axle position with lifted suspensions
• Compatible with 0"-6" suspension lifts using OE attachment points

Specifications

• Part Number: JKS1665
• Type: Rear upper adjustable control arm pair
• Material: DOM steel tubing with rubber bushings
• Adjustment range: ~17.375"-19.00"
• Finish: Black powder coat
• Thread size: 1-1/4"-12 jam nut adjuster
• Fitment: Direct bolt-on replacement
• Compatible lift range: 0" to ~6"

Included Components

• 2x Rear upper adjustable control arms
• 2x Jam nuts for adjustment
• Hardware as needed for install

Product Description

The JKS JKS1665 Rear Upper Adjustable Control Arms are engineered for 2007-2018 Jeep Wrangler JK models - including Sport, Sahara, Rubicon, and Unlimited variants - to improve rear suspension geometry and handling performance when lifted or stock. These control arms feature a J-Flex design with forged adjustable flex ends and jam nuts that let you fine-tune arm length for proper caster alignment and better axle positioning. The arms are CNC-formed from durable DOM steel tubing and finished with a corrosion-resistant powder coat for long life on and off the trail.

Factory-style rubber bushings at the non-adjustable end help reduce noise and vibration, while the adjustable flex joints are fully rebuildable and greaseable for extended service. With an adjustable length spanning approximately 17.375" to 19.00", these arms allow for precise suspension setup on stock or lifted JK Wranglers with lifts up to around 6" using original equipment attachment points. Installation is a straightforward bolt-on upgrade that enhances ride quality, handling, and rear axle control for everyday driving and serious off-road use.