Wrangler JK 2007-2018 Jeep 4WD - Adjustable Front Upper Control Arms by JKS

JKS1615 J-Flex Adjustable Front Upper Control Arms for Jeep Wrangler JK models are engineered to improve suspension strength, articulation, and geometry correction for lifted applications. Designed for off-road performance and long-term durability, these adjustable upper control arms allow precise tuning of caster and front suspension alignment while maintaining proper tire, frame, and axle mount clearance.

Constructed from CNC-bent DOM tubing, each arm is built for strength and proper fitment throughout the suspension’s full range of motion. The forged J-Flex adjustable end features heavy-duty 1"-14 threads for superior strength and fine adjustment capability. The flex ends are fully rebuildable and greaseable, providing long service life and smooth articulation even under demanding trail conditions. A hex-shaped weld-in threaded bung and included jam nuts allow secure, easy adjustments when dialing in suspension geometry.

The fixed end of each control arm is boxed for additional strength and rigidity, ensuring reliable performance under load. Finished in a durable powder coat for corrosion resistance and long-term protection, JKS1615 J-Flex Adjustable Front Upper Control Arms are sold in pairs and provide a performance-driven upgrade for Jeep Wrangler JK suspension systems.

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