On the Wrangler TJ, coil springs and shocks are primary determining factors in ride quality and suspension performance. Skyjacker 2-Stage Variable Rate Springs deliver a smooth controlled comfortable ride. First Flex Rate stage delivers a comfortable ride with the ability to flex\expand during full articulation as the suspension drops (full droop). This keeps the coil springs seated in the upper coil mount\bucket and the tires in contact with the terrain. Second Ride Rate stage only engages after compression past Flex Rate.Skyjacker ADX 2.0 Adventure Series Remote Reservoir Aluminum Monotube Shocks deliver modern technology in the design with an innovative off-road race-inspired full-displaced valving system. ADX 2.0 provides consistent dampening, high-end performance, cooler running, more control and improved driving comfort. From higher speeds to a highway crawl, ADX 2.0 work. The large 46mm bore size of the Monotube and remote reservoir reacts quicker and creates the smoothest ride possible. The external remote reservoir separates the nitrogen gas from the oil with an Internal Floating Piston (IFP). The majority of the reservoir contains pressurized nitrogen gas. The IFP prevents the gas and oil from mixing or foaming (cavitation). Nitrogen charged with IFP Technology = Quickest Shock Reaction Time Ever.Longer Replacement Front and Rear Lower Control Link Arms correct caster angle. Formed from 2-inch OD x 0.250 wall DOM tubing, both pairs of fixed length arms with pressed-in OEM style steel encased rubber bushings at the frame and the axle mounts. A tubular Transfer Case Lowering Kit helps avoid drive shaft vibration by correcting proper driveline angle while retaining as much ground clearance as possible. Transfer Case Linkage Relocation Bracket included. Front and Rear Bump Stop Spacers prevent over-compression. Rear Track Bar Lower Axle Mount Bracket corrects track bar angle to create better handling and a less side-to-side sway.. 2.5 in. Suspension Lift System With ADX 2.0 Remote Reservoir Monotube Shocks.. ADX 2.0 Nitrogen Charged\Internal Floating Piston Technology. Monotube\Remote Reservoir Large 46 mm [1.811 in.] Bore Size. ADX 2.0 Has A Race-Inspired Full-Displaced Valving System. Transfer Case Lowering Kit Corrects Rear Driveshaft Angle. Track Bar Correction Centers Axle Under Vehicle Properly. Bump Stop Spacers Keep Suspension Travel Safely In Check. Flex Stage\Ride Stage Dual Rate Long Travel Coil Springs. IFP Technology Prevents Lag [Decline] Or Fade [Failure]. From Higher Speeds To A Crawl Skyjacker ADX 2.0 Works. Straight Bolt-On/Direct Fit/Simple Remove And Replace. ADX 2.0 Has The Quickest Shock Reaction Time Ever. Front\Rear LCA Fixed Links Correct Caster Angles. Skyjacker 2.5In KIT 2003 WRANGLER TJ. 2.5in.KIT; 2003 WRANGLER TJ. Lift Kit-Suspension

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