Jeep JL/JT J-Flex Front UCA Kits


Jeep JL/JT J-Flex Front UCA Kits

Coldwater, MI — JKS Manufacturing adds to its lineup of suspension upgrades for the Jeep Wrangler JL and Gladiator JT with new J-Flex front adjustable upper control arms. These front J-Flex uppers join the existing upper and lower control arms options giving you the ability to make significant improvements to the strength and performance over the stock control arms. These arms are constructed from high strength DOM tubing and feature robotically welded ends to ensure precision welds and strength. At the frame mount a forged end is threaded in allowing plenty of adjustability for use with with a wide range of ride heights from stock to 6" of lift. The forged ends allow 15 degrees of articulation in either direction and can be easily serviced at the grease fitting. These arms come fully assembled right out of the box finished in a gloss black powdercoat. Upgrade your JL/JT front upper control arms with JKS Manufacturing.

View these and other JL/JT products at

Product Features:
  • DOM steel tubular construction, formed for improved tire clearance.
  • Forged ends for improved strength and more articulation.
  • Adjustable length allows for caster correction from stock to 6" lifts.
  • Greasable forged ends can be easily serviced and rebuilt.
  • Durable glass black powercoat finish.
Product Info:
#JKS1616 - Front Adj UCA Kit -$269.99 Jobber
2018-2020 Jeep Wrangler JL 2Dr/4Dr
2020 Jeep Gladiator JT
Related Kits/Products:
  • JKS1621 - J-Link Front Lower Control Arms
  • JKS1625 - J-Flex Front Lower Control Arms
  • JKS1665 - J-Flex Rear Upper Control Arms (JL only)
  • JKS1671 - J-Link Rear Lower Control Arms (JL only)
  • JKS1661 - J-Flex Front Lower Control Arms (JL only)
  • JKS1696 - Jam Nut Wrench 1-1/2"

JKS Manufacturing includes the Factory Protection Plus Program

  • 5-year, 100,000-mile Drivetrain Warranty
  • FMVSS No.126 ESC System Compliance
  • JKS's Limited Lifetime Warranty
About JKS:   Since 1989, JKS Manufacturing has developed some of the most widely used and respected products for Jeep vehicles in the off-road industry. From the original Quick Disconnect™ brand of quick-release swaybar disconnect systems, to the innovative ACOS Pro™ variable height coil spring spacer with integrated bump shock, JKS® only manufactures products that provide unquestionable benefits to vehicle performance. It's no coincidence that those who know Jeep performance best choose JKS products for their own vehicles.

© JKS Manufacturing, 491 W. Garfield Ave. Coldwater, MI 49036

(517) 278-1226 | |