Collection: JKS Jeep Suspension

Who JKS Manufacturing is

JKS Manufacturing builds suspension for Jeep vehicles. The company says it has developed Jeep products since 1989, starting with the original Quick Disconnect quick-release sway bar disconnects. Today JKS makes JSPEC lift kits (J-Venture, J-Kontrol, J-Konnect, J-Krawl and J-Max), long arm kits, track bars, control arms, coil springs, bump stops and steering parts, mainly for the Wrangler and Gladiator, with some Bronco parts.

We carry 19 JKS parts right now. It is a focused set of arms, links and brackets, not complete lift kits.

JKS parts we carry

Positions and vehicles below come from JKS's own part listings.

Fitment coverage

Most of our JKS stock is for the 2018+ Wrangler JL and 2020+ Gladiator JT, with some JK parts. The Quicker Disconnect links also cover the Wrangler TJ, Cherokee XJ, Comanche MJ, Grand Cherokee ZJ and WJ, and the CJ and YJ. For complete lift kits and more parts, see our Wrangler and Gladiator lift kits and Jeep suspension pages.

How to choose between JKS lines

J-Flex vs J-Link adjustable

Both are adjustable, so you can set pinion angle and caster after a lift. JKS builds J-Flex arms from 2 in OD, 0.250 in wall DOM tubing, with an OE-style rubber bushing at the axle and a greaseable, rebuildable flex end at the frame. JKS says that flex end allows 30 degrees of misalignment for articulation. J-Link adjustable arms use maintenance-free rubber bushings at both ends for less noise and vibration. Pick J-Flex if you crawl and want the most articulation. Pick J-Link if the Jeep is mostly a daily driver.

J-Link fixed length

Fixed arms are the simple choice for a mild lift. JKS makes the JL/JT front lowers 5/16 in longer than stock to correct caster, and the JL rear lowers 1/4 in longer to recenter the axle, for 0 to 4.5 in of lift in the factory mounts.

Quicker Disconnect end links

Pick the link by vehicle and lift height. For the JL and JT, JKS2032 covers 0 to 2 in and JKS2033 covers 2.5 to 6 in, according to JKS. JKS says the links can improve articulation by up to 30 percent when disconnected. Our sway bar end links page lists other options.

Brackets and the JK steering kit

The JL shock extension brackets extend the factory mounts by 2 in, so factory shocks work with up to 2.5 in of lift. The JK steering and caster correction kit is for JKs with 2.5 to 5 in of lift. JKS notes it needs a factory pitman arm and at least 3 in of front bump stop extension.

What else you'll need

Any control arm change needs an alignment. On a lifted Jeep, an adjustable track bar keeps the axle centered, and a steering stabilizer helps control shimmy. See our Steer Smarts page for heavy-duty tie rods and drag links.

JKS vs alternatives we carry

TeraFlex is the closest alternative. Our TeraFlex range includes quick-disconnect end links at $204.99 and Alpine IR control arms at $2,099.99. JKS gives you more individual arm choices at lower prices, while TeraFlex leans toward complete systems and shocks.

Popular picks

• JKS Quicker Disconnect links JKS2033, $221.99. For lifted JL and JT owners who want to disconnect on the trail.
• JKS J-Flex front lower arms JKS1625, $447.99. Adjustable arms for lifted JL and JT.
• JKS J-Link fixed front lower arms JKS1621, $324.99. Simple caster correction for a mild lift.
• JKS shock extension brackets JKS9612, $169.99. Keep factory shocks on a small JL lift.
• JKS steering and caster correction kit JSPEC2450, $630.99. Better steering geometry for a lifted JK.

Related guides

• Adjustable sway bar end links
• Bad control arm bushing symptoms
• Bump steer explained

Warranty terms are set by each brand.

Sources

• JKS Manufacturing: about us
• JKS: J-Flex front lower arms for JL and JT
• JKS: J-Link fixed length arms for JL and JT
• JKS: Quicker Disconnect links for JL and JT