JKS Manufacturing · New
JKS Manufacturing Jeep Wrangler JK Adjustable J-Flex Upper Control Arms - Rear
MPN JKS1665 · Store SKU jksJKS1665
Supplier stock checked 11/7/2026, 12:35:17 PM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
Enhance your Wrangler JK Jeep's off-road prowess and reliability with JKS J-Flex adjustable rear upper control arms. CNC-bent from stout DOM tubing, the fully adjustable design allows you to fine-tune suspension geometry. The ends are also fully rebuildable and greaseable. With heavy duty 1-1/4"-12 threads and hex shaped weld-in bungs, tightening of the included jam nuts is super easy and secure. At the non-adjustable end, factory style rubber bushings provide quiet, maintenance-free operation. Arms are powder-coated for a long-lasting finish. Sold in pairs. Shop JKS Adjustable rear upper control arms for Jeep Wrangler JK. Heavy-duty DOM tubing with rebuildable flex joints to fine-tune suspension geometry and axle alignment. JK Rear Adjustable UCA
Manufacturer fitment & guides
Check JKS1665 against the manufacturer’s application information below.
A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.
Part-specific notes
- California Proposition 65: Y
