Jeep JK 4 4.5" Lift Kits for 2007 2018 Wrangler Best Prices at 18 Up Wrangler JL 4 Door 4.5 Inch Alpine RT4 Long Arm Suspension System No Shocks TeraFlex Shop OK4WD JEEP JK LONG ARM SUSPENSION 4 INCH ALPINE RT4 SYSTEM AND FALCON 3.3 18 Up Wrangler JL 2 Door 4.5 Inch Sport ST4 Suspension System No Shocks Jeep JK Lift Kits 4 4.5" for Wrangler (2007 2018) ExtremeTerrain. TeraFlex Alpine RT (Rogue Trail) Suspension Systems build on our already capable Alpine CT (Cross Trail) Suspension Systems. These systems include all our top of the line components. The 4. 5 Inch Alpine RT4 Long Arm Suspension System excels on the highway, off road, through the desert, or rock crawling! Bolt on Alpine IR Long Arms & Brackets, HD Forged Adjustable Track Bars, and Track Bar Brackets allow full suspension adjustability, while the SpeedBumps smooth out unexpected trail bumps. This is the ultimate suspension with a lifetime warranty. Adjustable Alpine IR Long Arms balance front caster angle and pinion angles as well as optimize rear pinion angles, anti squat geometry, and tire position on vehicles with 3 6 Inch Lifts. On higher lifts, Long Arm Brackets reposition frame end control arm mounting points to restore near factory orientation to reduce bushing stress during extreme droop as well as shock load transferred through the Long Control Arms. Alpine IR Control Arms feature our Independent Rotation (IR) Bushings. These innovative bushings remove bushing bind during full suspension travel for less overall bushing load during articulation resulting in unrestricted droop as well as a noticeable ride improvement whether on the highway or the trail. HD Forged Adjustable Track Bars and Track Bar Bracket(s) improve steering response, center the axles to optimize vehicle roll center, and reduce body roll for unsurpassed handling. This results in improved suspension geometry and relaxed control arm angles for a superior ride quality and performance regardless of terrain. These systems restore front and rear roll axis angles to minimize brake dive and acceleration squat. TeraFlex suspension systems provide reduced noise, vibration, and harshness (NVH). Alpine RT Suspension Systems are for the Jeeper who wants it all! Does Not include shocks. We recommend Falcon Performance Shocks. Sold separately. Includes: 4. 5 Inch Lift Coil Spring Pair (JL4 Front: # 1864400) (JL4 Rear: # 1864300) Alpine IR Long Arm & Bracket Kit w Crossmember 8 Arm (3 6 Inch Lift) (JL4: # 1310510) HD Forged Adjustable Track Bar (0 6 Inch Lift) (Front: # 1753420) (Rear: # 1754420) Track Bar Bracket Kit (Front Lower 4. 5 Inch Lift: # 1953500) (Rear Lower 2. 5 4. 5 Inch Lift: # 1953600) SpeedBump & Progressive Bump Stop Kit Front & Rear (0 4. 5 Inch Lift) (# 1958350) 2 Inch Bump Stop Strike Pad Extension Kit Front & Rear (# 1959500) 0. 5 Inch Bump Stop Strike Pad Shim Kit Front & Rear (# 1959300) Front Sway Bar Quick Disconnect Kit (0 4. 5 Inch Lift) (# 1764000) Sway Bar Link Kit Rear (# 1764300) RockGuard Transmission Skid Plate Long Arm Crossmember Reinforcement (# 4609100) Brake Line Anchor Kit Front (# 1101255) All necessary hardware And more Fitment Vehicle(s): JL Wrangler Unlimited (4 door) Specs: Lift Height: 4. 5 Inch Does Not fit 4 door JL Wrangler Unlimited 4xe hybrid models Max Tire Diameter: Sport Sahara Fenders: 35 Inch (w 3 Inch front & 2. 5 Inch rear bump stop strike pad extensions shims) Sport Sahara Fenders: 37 Inch (w 3. 5 Inch front & 4 Inch rear bump stop strike pad extensions shims) Rubicon Fenders: 37 Inch (w 2. 5 Inch front & 3 Inch rear bump stop strike pad extensions shims) Aftermarket High Fenders: 39 Inch+ (varies)