JKS 20-21 Jeep JL J-Krawl 2.5in 4Dr w/Fox 2.0 Performance Shocks - DIESEL

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JKS 20-21 Jeep JL J-Krawl 2.5in 4Dr w/Fox 2.0 Performance Shocks - DIESEL

  • Front Adjustable Track Bar and Rear Track Bar Bracket to correct axle positioning under vehicle.
  • Front Sway Bar Quicker Disconnects and Rear Sway Bar Links for increased off-road articulation.
  • Front/Rear Bump Stop Extensions to properly limit suspension up travel.
  • Front/Rear J-Flex Upper Control Arms to add strength and adjustability.
  • Front/Rear J-Flex Lower Control Arms to add strength and adjustability.

Build the ultimate rock crawling Diesel 4-Door Jeep Wrangler JL with a J-Krawl 2.5" lift kit suspension system. The complete system is designed for maximum articulation, strength and adjustability. Components include J-Flex Upper and Lower Control Arms, JSPEC dual rate coil springs, custom-valved FOX 2.0 IFP Performance Series IFP shocks, an adjustable front track bar, a rear track bar bracket, Quicker Disconnect front sway bar end links, and bump stop extensions. J-Krawl builds off Jeep’s factory suspension mounting points and upgrades everything front to rear. Adjustability is important for fine tuning suspension geometry. J-Krawl delivers. Dial in front caster, rear pinion and overall vehicle wheelbase. The JKS Engineering team spent a lot of time dialing in the FOX shock valving and spring rates to suit J-Krawl's combination of parts as well as oversized wheels and tires. You'll be impressed with the stability and compression/rebound response. Take your Jeep's off-road performance and strength to the next level. It should be noted that an aftermarket front driveshaft is strongly recommended due to potential additional travel.

Installation Instructions

Tire Specs



Rubicon Models (all kits)


Tire: 37x12.50


Wheel: 17x9, 18x9, 20x9


Backspacing: 5"



Non-Rubicon Models (all kits)


Tire: 35x12.50


Wheel: 17x9, 18x9, 20x9


Backspacing: 5"




Other tire/wheel sizes can be used, however may require additional modification.


Important Notes



  • Factory wheels cannot be reinstalled without wheel spacers
  • HD front springs recommended for applications with aftermarket winch/bumper combo
  • HD rear springs recommended for applications with rear mounted full size spare tire
  • Front aftermarket driveshaft strongly recommended due to additional travel capability
  • Will not fit 4xe models
  • Will not fit Rubicon 392 models


In the Box


In the box for JSPEC169KFP:

JSPEC1312 (x1) J-Krawl Main Box Kit

JKS1616 (x1) Adjustable Front UCA

JKS1625 (x1) Front Lower J-Flex Control Arm Kit

JKS1666 (x1) Rear Adjustable UCA

JKS1661 (x1) Rear Adjustable LCA

JSPEC1252 (x1) 2.5in Front Coil Spring Kit - HD

JSPEC1259 (x1) 2.5in Rear Coil Spring Kit - STD

FOX98524179 (x2) Front FOX 2.0 IFP Performance Shocks

FOX98524180 (x2) Rear FOX 2.0 IFP Performance Shocks


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