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JKS Manufacturing


Since 1989, JKS Manufacturing has developed some of the most widely used and respected products for Jeep vehicles in the off-road industry.

The latest products to hit the market are the new fixed length front and rear lower control arms available for 2007-2014 Jeep Wrangler JK/JKU. These arms are built to the highest standard from 2'' x .250''-wall DOM tubing, fully welded and finished in a durable black powdercoat. The arms come ready fully assembled right out of the box with pre-installed Clevite® brand rubber bushings at each end for long lasting bushing performance and superior road noise isolation qualities. Up front these control arms are slightly longer than stock in order to increase and correct caster on vehicles lifted up to 4.5". The arms are formed inward to match the profile of the factory front arms creating plenty of clearance for oversized tires. The rear arms mimic the front arm construction using 2'' x .250-wall DOM tubing and Clevite rubber bushings. The rear arms retain the stock arm length as it allows for proper driveline angles and ensures that the tire stays centered in the wheel well when the suspension is fully compressed.

Fixed Lower Control Arms<br/> Fixed Lower Control Arms

These new arms are a huge strength upgrade to the factory components. They will work well on their own as an upgrade or can be combined with the popular JKS rotating adjustable upper arms for precise adjustments of front and rear driveline angles and front caster angle.


PN1620 fits 2007 - 2014 Jeep Wrangler JK/JKU [BUY NOW]

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.

Sport Truck USA | 517-278-1226 |

Factory Protection Plus Badge

The Ultimate Lifted Suspension Protection Coverage and it’s FREE!

Limited Lifetime Warranty
Factory Protection Plus
  • 5 Year, 100,000-mile PLUS Protection
  • Free, no cost protection for JKS customers
  • Could save thousands on possible repairs
  • Easy online application process
  • Available for most late model vehicles
Drivtrain 5year 60K Mile Protection Drivetrain Warranty

A 5 year - 100,000-mile plus drivetrain warranty is available for Jspec equipped vehicles as a Supplemental Drivetrain Limited Warranty to match your new vehicle express drivetrain limited warranty Jeep. The protection applies to any Jspec eligible suspension systems purchased on or after November 1st, 2013.

Drivtrain 5year 60K Mile Protection
What is FMVS No. 126?

When you see the FMVSS Compliant Symbol you will know with confidence this application has been tested and successfully passed the Federal Motor Vehicle Safety Standard No. 126 compliance test. This highly specialized test was performed to prove the installation of the particular Jspec suspension system, with specified wheel and tire package will not compromise the performance and effectiveness of the vehicle’s Electronic Stability Control (ESC) system keeping you safer on the road.


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