RockJock's Pro Edition Johnny Joint Suspension System for JK Wranglers provides 4 inches of lift and allows for efficient clearance of up to 37 in. tall tires (larger tires will require aftermarket fenders and minor trimming)! This kit is comprised of only the highest end components in the areas of strength, fit, finish, function, and the engineering to back them, delivering a smooth, comfortable on-road ride with the ultimate in off-road capability – all in a complete, direct bolt-on kit. This kit is designed specifically for the serious off-roader who not only wants to lift their vehicle and install big tires, but also wants to tackle the toughest trails in the country with confidence and ease.
Premium shock packages from Rancho, Fox and King are offered here as options so that you can select the shock brand and performance level that matches your driving style. We always recommend adjustable shocks, as they allow the ride to be tuned to match the terrain and driver’s preference.
 
Kit Fits:
JK Wrangler (2-door) – All Models
 
Kit Includes:
4 in. Lift Dual-Rate Front And Rear Springs
8 Johnny Joint Adjustable Control Arms
Johnny Joint Adjustable Front Trac Bar (forged, organically shaped)
Johnny Joint Adjustable Rear Trac Bar
Front and Rear Trac Bar Geometry Correction Brackets
Front and Rear Bump Stop Kits
Front and Rear Adjustable Sway Bar Links w/ Sealed Ends
Front and Rear Brake Line Relocation Brackets
Dropped Pitman Arm
Rear Shock Relocator Kit
All Required Hardware
 
Kit Features:
RockJock Spec. Dual-Rate Springs - Feature a soft initial rate that absorbs small bumps and trail chop, to deliver a smooth, comfortable ride, while a firmer secondary rate helps soak up larger impacts and reduce bottoming. A key differentiator of RockJock spec. dual-rate springs is the positioning of the crossover point between the initial and secondary spring rates so that a portion of the softer initial rate is available and active at ride height before crossing over to the firmer secondary rate deeper into the travel.
Bump Stop Spacers - Proper bump stop extensions are a must and o