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J-Rated 3.5" Suspension System | Wrangler JL (4 Door)

Original price $1,191.43 - Original price $1,191.43
Original price
$1,191.43 - $1,191.43
Current price $1,191.43
SKU 119K

At the heart of any true Jeep suspension system are properly designed coil springs. By developing specially tuned sets of dual rate coils springs, JSPECu2122 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, JSPECu2122 coils will provide the ride you want and the performance you need. Anticipating the desires of many in the JL community JKS has developed two versions of their dual-rate coil spring, the first being the standard dual-rate springs offering smooth, predictable performance as well as new heavy-duty (HD) dual-rate coil springs specially designed for JLs outfitted with winch bumpers, racks and loaded down with other gear. 

In the rear, these 3.5" J-Rated Systems utilize a pair of standard or HD coil spring along with extended length rear sway bar links to correct sway bar operating angle. The rear axle is repositioned using a heavy-duty rear track bar bracket designed to key off the factory bracket for more strength while centering the rear axle under your JL. Additionally, rear bump stop extensions are supplied as well as a matching set of JSPEC gas shocks of FOX 2.0 Performance series shocks to round out this package. Improve not only your new Wrangler JLu2019s appearance but its offroad capability and on-road comfort with this new 3.5u201d J-Rated JSPEC System from JKS Mfg.

  • 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
  • Rear track bar bracket
    Install Time
    5-6 Hours

    Base Kit
    Base Kit components include the following;

    - JSPEC1302 1ea - 2018 JL 3.5in Box Kit
    - JSPEC1351 1ea - JL 3.5in Front Coil Spring Kit - STD
    - JSPEC1359 1ea - JL 3.5in Rear Coil Spring Kit - STD
    - JSPEC9322 2ea - JSPEC - 26.2 x 15.67 x 2-3/8 - EB1/EB1
    - JSPEC9328 2ea - JSPEC - 30.95 x 18.18 x 2-3/8 - EB1/EB1

    Year Make Model: 2020 Jeep Wrangler JL
    Year Make Model: 2019 Jeep Wrangler JL
    Year Make Model: 2018 Jeep Wrangler JL

    Shipping Information
    • Item Requires Shipping
    • 145.0 lbs.
    • W12.0 x H12.0 x L36.0
    California Residents

    Prop 65 Warning

    WARNING: Cancer and Reproductive Harm -