JKS Manufacturing J-Rated 3-3.5in Suspension System - 2020 Jeep Gladiator JT

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.

• Front and rear dual rate coils springs (standard or HD)
• JSPEC Custom Valve Gas Shocks or FOX 2.0 Performance IFP Shocks
• JKS MFG front adjustable trackbar
• JKS MFG front sway bar quicker disconnects
• Front caster cam locks
• Front/Rear bump stop extensions
• Rear extended sway bar links

Important Notes

• Non-Rubicon models comes from factory at lower ride height
• This system will net 3.5” front / 2” rear
• Final stance the same for Rubicon and non-Rubicon

At the heart of any true Jeep suspension system are properly designed coil springs. By developing specially tuned sets of dual rate coils springs, JSPEC™ coils provide the best performance in any driving situation. Whether loaded down with gear for a weeklong expedition, running light for some rock-crawling fun, or loaded with a few friends for a trip to the beach, JSPEC™ coils will provide the ride you want and the performance you need. Anticipating the desires of many in the JL community JKS has developed new HD dual rate springs offering smooth, predictable performance while offering extra capacity for customers adding front end accessories. Springs allow for 3” of lift in Rubicon models, 3.5” of lift on other models. Pairing to these coil springs you’ll have the option of Jspec gas charged twin tube shocks or FOX 2.0 performance series aluminum-bodied monotube shocks, both are designed for on-road comfort and improved capability when you hit the trail. Next up on the parts list is the JKS adjustable front track bar. Known for its strength and superior design, this track bar is built from 1.5” OD heavy wall DOM tubing. The track bar is formed for maximum clearance to the front axle, utilizing a threaded end with jam nut and durometer specific bushings at both ends to properly position the front axle while isolating NVHs. Also positioning the front axle is a set of lower control arm cam locks to correct caster for improved driveability.

When its time to hit the trail, the supplied sway bar quicker disconnects can be easily removed by pulling the clips and swinging the links up and out of the way for increased articulation. These sway bar disconnecting links maintain quiet on-road comfort and quiet operation using an adjustable design with spherical poly-flex ball bushings capable of high-misalignment. New for the JT quicker disconnects is a frame mounted retention bracket to secure your sway bar up out of the way when you’re on the trail. Along with sway bar disconnects to increase articulation, a pair of billet aluminum bump stop extensions are also included to control suspension up travel.

From the factory the Gladiator has a bit of rake, with the front end roughly 2” lower. To eliminate this rake while still maintaining ride quality and load capacity, a HD dual rate 1.5-2” lift coil springs specifically designed for the Gladiator were developed. Additionally extended length rear sway bar links are supplied to correct sway bar operating angle along with rear bump stop extensions to properly limit up travel. Rounding out the rear is your choice of matching Jspec gas shocks or FOX 2.0 performance series shocks to round out this package. Improve not only your new Gladiator JT’s appearance, but its offroad capability and on-road comfort with this new 3” J-Rated Jspec System from JKS Mfg.

Base Kit components include the following;

JSPEC131K
- JSPEC1303 1ea - 2020 JT 3.5in Box Kit
- JSPEC1352 1ea - Front Coil Spring Box Kit HD
- JSPEC1257 1ea - Rear Coil Spring Box Kit
- JSPEC9322 2ea - JSPEC - 26.2 x 15.67 x 2-3/8 - EB1/EB1
- JSPEC9327 2ea - JSPEC - 30.95 x 18.18 x 2-3/8 - EB1/EB1