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2018 Jeep Wrangler JL with JSPEC™ J-Rated 3.5" Lift System

JKS New Product Announcement: Rear Coilover Conversion Kit Now Available for the 2007-2018 Jeep JK

Coldwater, MI — Pull out all of the stops by upgrading to JKS complete rear coilover conversion for the Jeep Wrangler JK. Designed to compliment the available front coilover conversion, this rear coilover conversion takes performance to a whole new level to maximize damping capability while allowing for more suspension travel and simple tunability for any terrain. Custom valved 10" travel FOX 2.5 factory race series coilovers with remote DSC reservoir are mounted in place with a set of JKS upper and lower mounting brackets. These bolt-on brackets are built from high quality American steel and finished in a durable gloss black powdercoat. With the lower mount designed for improved clearance to help keep the coilovers tucked up out of harms way out on the trail. These FOX 2.5 coilovers offer race proven technology with a larger 2.5” diameter body, dual rate springs, improved oil capacity, large 7/8" hard chrome plated shade and (DSC) dual speed compression adjustment technology. The DSC allows for for 12-clicks of high speed and 10-clicks of low speed compression adjustment to dial in how the shocks performance in various terrains. This coilover conversion is compatible with most lift kits on the market and use a threaded body allowing for preload adjustment to set ride height for between 2-5" of lift while still offering plenty of suspension travel. All hardware as well as detailed step-by-step instructions are supplied. Take your JK to the next level with this rear coilover conversion from JKS.

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View Coilover Mounting Kit  Online

View FOX Coilovers with DSC 2"-2.5" System Online

View Install Instructions

New Product:

Rear Coilover Conversion Kit for Jeep JK

Kit ID Number(s):

JKS2510 & FOX9806178 (Jeep JK Front Coilover Conversion | FOX 2.5 DSC Coilovers)

JSPEC153F (Jeep JK 3" J-Max Suspension System)


$1587.96 (Jeep JK Front Coilover Conversion | FOX 2.5 DSC Coilovers)

$6240.39 (Jeep JK 3" J-Max Suspension System)


2007-2018 Jeep Wrangler JK (2 Door)

2007-2018 Jeep Wrangler JK (4 Door)

2.5" J-Rated Kit Features:

  • FOX 2.5 factory series coilovers for improved performance, strength and tunability.
  • Remote reservoir with DSC adjuster for high-speed and low-speed compression damping adjustment.
  • Heady duty 1/4" steel bolt-on brackets allow for easy installation.
  • Improved ground clearance over other coilover kits on the market.
  • Allows for improved suspension travel and increased control for offroad use.

Kit Notes:

  • Kit is designed as an upgrade for lifted JKs, if installing on a stock height JK additional modifications will be necessary to correct suspension/driveline geometry.
  • Requires cutting of the factory shock mounts and is not designed to allow the vehicle to go back to stock configuration.
  • Requires a minimum of 2" of additional rear bump stop height from factory (included with more lift kits)
  • Reservoir mounts are not designed to work with the factory rear bumper.

© JKS Manufacturing

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 | |


Factory Protection Plus Badge

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

Limited Lifetime Warranty

All JKS products are protected by a limited lifetime warranty to ensure they are free from manufacturer defects in material and workmanship so you can go with confidence knowing your JKS parts are covered.

  • - 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

When you see this symbol you will know with confidence this application has been tested and successfully passed the Federal Motor Vehicle Safety Standard (FMVSS) No. 126 test. This highly specialized test was performed to show the installation of this particular J-Rate suspension system, with a specific tire and wheel package would not compromise the performance and effectiveness of the vehicle’s Electronic Stability Control (ESC) system.

Drivtrain 5year 60K Mile Protection

The cherry on top for the industry leading Factory Protection Plus Program is the Supplemental Limited Warranty offered at no additional cost to the customer. This warranty is designed to supplement the factory drivetrain warranty on each vehicle and provides the extra peace of mind knowing your Jeep is protected. All J-Rated lift systems include this supplemental coverage to match either the factory 5-year/100,000-mile drivetrain warranty offered.


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