Rough Country 66130-4-inch X-Series Suspension Lift System w/Premium N3 Shocks for Jeep: 97-06 Wrangler TJ 4WD, 04-06 Wrangler Unlimited LJ 4WD FITMENT: Jeep: 97-06 Wrangler TJ 4WD, 04-06 Wrangler Unlimited LJ 4WD KIT CONTENTS: Front: Lifted coil springs, upper and lower adjustable X-Flex control arms, track bar drop bracket, forged adjustable front track bar, stainless steel brake lines, drop pitman arm, and sway bar disconnects; Rear: Lifted coils springs, upper and lower adjustable X-Flex control arms, track bar drop bracket, lower shock brackets, and stainless steel brake line; Shocks: (4) Premium N3 Shocks BENEFITS: Easy bolt-on installation; Front adjustable track bar is made of forged solid steel for unsurpassed strength and durability; Quick disconnects easily store out of way when not in use; X-Flex control arms:; Clevite OEM style rubber bushings; Flex joints with 2.5-inch diameter body and huge 1.25-inch threads; Fully rebuildable and greasable;Upper joints pivot up to 20 degrees; Lower joints pivot up to 35 degrees TECHNICAL NOTES: Tranfer Case Drop kit (97-02: #1668TC 03-06: #1669TC) or 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 or transfer case drop, but CV drive shaft is still recommended ITEM SPECIFICS: Installation Time: 6-8 hours; Backspacing: 4.5-inches; Recommended Tire Size: 33-by-12.50; Weight: 175.39-lbs; Superseded: 661.20, 661X Easy bolt-on installation Increased ground clearance Levels the front with the rear of the vehicle Front adjustable track bar is made of forged solid steel for unsurpassed strength and durability Coil springs are progressive rate for enhanced ride quality. Quick disconnects quickly and easily store out of the way when not in use. Includes application valved N3 series shock absorbers which offer the best in balanced performance for on and off-road use. Transfer case drop kit or Slip Yoke Eliminator with CV Drive Shaft is recommended to avoid driveline vibration. Rubicon models do not need a SYE kit or transfer case drop but a CV Drive Shaft is still recommended. 1997-2006 4WD Jeep TJ Wrangler 2004-2006 4WD Jeep TJ Wrangler Unlimited