Rough Country - 63122-6-inch X-Series Long Arm Suspension Lift System w/Performance N3 Shocks for Jeep: 04-06 Wrangler Unlimited LJ 4WD/2WD FEATURES: Front and rear adjustable track bars are made of forged solid steel for unsurpassed strength and durability; High clearance design lower control arms; Extreme travel long arms keep optimum alignment and give optimum articulation; Clevite OEM style rubber bushings; Flex joints with 2.5-inch diameter body and huge 1.25-inch threads; Fully rebuildable and greasable; Adjustable retainer ring; Upper joints pivot up to 20 degrees; Lower joints pivot up to 35 degrees NOTES: Slip Yoke Eliminator (#50-7906 - Only fits NP231 transfer cases) with CV drive shaft is recommended to avoid driveline vibration; "Rubicon" models do not need SYE kit, but CV drive shaft is still recommended; Exhaust will have to be cut and rerouted to make sure it is away from the moving components KIT CONTENTS: Front: High flex coil springs, lower and upper high clearance X-Flex arms, control arm mounting brackets, forged adjustable track bar with drop bracket, drop pitman arm, sway bar disconnects with parking bracket, and stainless steel brakelines; Rear: High flex coil springs, lower and upper high clearance X-Flex arms, forged adjustable track bar, extended sway bar links, stainless steel brakeline, and bumpstop extensions; Shocks: (4) Performance N3 Shocks SPECS: Installation Time: 8-9 hours; Backspacing: 4.5-inches; Recommended Tire Size: 35-by-12.50; Weight: 293.96-lbs; Superseded: PERF631 FITMENT: Jeep: 04-06 Wrangler Unlimited LJ 4WD/2WD