The EVO MFG 4.5" JLU High Clearance Long Arm kit will like your JLU 4.5's. Through specifically designed bracketry we accomplish the ultimate in suspension and chassis clearance, larger wheel travel ability, optimal suspension geometry with increased ride quality. Clearance, ride quality, performance and ease of installation was our focus in creating this long arm suspension system. The front arms mount tucked up inside nearly flush with the bottom of the frame mounting inches above the stock front lower mounting bracket. The rear mounting locations for the long arm are on the side of the frame, above the bottom giving inches of clearance over the factory locations as well. Keeping optimal geometry while maintaining as much clearance was critical in the design of this system. In doing so, not only did we raise the rear control above the frame but we raised its mounting at the rear axle by multiple inches as well. This allows for an incredible ground clearance increase but just as importantly retaining flat and optimal control arm angles giving ideal ground clearance, smooth ride quality and long travel ability. The mounting brackets are specifically designed to require no exhaust cutting on 3.6L Jeep Wrangler JLU 's (minor grind/clearance to flange required) and have full length hard-face mounting surfaces that weld to your frame giving redundant and ample welding area and strength to their mounting. The mounting brackets align to the frame simply using existing factory holes giving complete assurance of proper locating during install. Simply bolt brackets up to frame with existing hardware and weld them in place. These kits come with a set of 4.5" Plush Ride Lift springs specific to each corner which will keep the Jeep Wrangler JLU more level side to side and will maintain a unique and compliant ride quality. EVO MFG Long Arm joints feature Johnny Joints on both ends of the control arms for restriction free articulation and motion with no wearable and limited bond rubber. All long arms come complete with EVO1 on vehicle adjuster making alignment a snap allowing for the ability to adjust control arm lengths while completely installed on the vehicle at all times. All EVO MFG lower long arms are built with strength in mind. These arms are made from industry leading 2.0" x .281" wall Steel DOM Tubing. Include in these kits is front brakeline extension brackets, Rear swaybar endlinks and front and bumpstop extensions. Cutting, grinding and welding of frame brackets required. The EVO MFG 4.5" High Clearance Long Arm kits require no driveshaft or exhaust modifications (your shock choice may require this, contact manufacturer to be sure). Option of retaining factory shocks, maintaining wheel travel with use of shock extensions (part number EXT kits) or without shock extensions to allow for use of your choice of aftermarket 3/5" lift shocks. EVO3015K kits come with EVO SPEC King 2.5" Remote Reservoir shocks all 4 corners. 3.5" lift is based on increase of our 4 Door Rubicon. 4 Door Sport and Sahara Models will see slightly higher increases over stock and will match overall lift height of a Rubicon Model. 2 Door Models (all) will see slightly higher increases in lift. Increases will vary. Note: Depending on actual tire variances and sizes, Some minor factory inner liner plastic may need to trimmed/removed to fully clear some tires under compression. These kits require wheel spacers or aftermarket wheels with smaller backspacing. Front and rear adjustable trackbars are included with PLUS "P" kits.