Since 1989, JKS Manufacturing has developed some of the world’s most widely used and respected products for Jeep® vehicles. It all started when they pioneered the original Quick Disconnect™ brand of quick-release swaybar disconnects. Since then their product range has expanded to include such favorites as the ACOS™ line of height-adjustable coil spring spacers, and perhaps our most advanced creation to date, the variable-rate SwitchBlade™ Swaybar System.

JKS is proud of the fact that they continue to manufacture all of their products in the USA, using only premium grade materials and state-of-the-art machinery. You can always rely on JKS products to provide unquestionable benefits to vehicle performance. From cushioning hard suspension impacts off-road, to restoring the geometry of your suspension for safer and more predictable handling on-road, our products improve the experience of owning and operating a Jeep vehicle.

Because JKS products take advantage of Original Equipment components and technology whenever possible, vehicle drivability and reliability are not compromised. Discover why recreational and competitive Jeep enthusiasts around the world insist upon JKS products to improve vehicle performance, reliability and versatility. It's no coincidence that those who know Jeep performance best choose JKS products for their own vehicles.

J-Flex Front Adjustable Upper Control Arms Wrangler JL & Gladiator JT from JKS Manufacturing

By TJ Jackson | October 21, 2019

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.

3-3.5″ J-Rated Suspension System Jeep Gladiator JT from JKS Manufacturing

By TJ Jackson | August 12, 2019

JKS Manufacturing launches the first of several Jspec lift systems for the new Jeep Gladiator JT, 3-3.5” J-Rated Systems allowing clearance for 35-37” tires. Engineered to maintain on-road comfort and handling while improving offroad capability, these new 3-3.5″ J-Rated Systems build on JKS’s legacy of innovative solutions building a true dual purpose platform ready to tackle your next off-road adventure or highway commute to and from the office.

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