Front Upper Control Arms, 2-4" Lift Tubular Ball Joint Kit Compatible with 1999-2006 Silverado 1500 Sierra 4WD 4X4 RWD with 6-lug Wheels (Pair)

FRONT: BSP upper control arms for 2-4" lift kits, alpha chromoly joints with a built in taper. Maintenance free pressed thermofuse pivot joint bushings, Hardware Included, works for 4WD and RWD. 2-4" LIFT, 6 LUG ONLY FEATURE: Whole PU bushing (better than rubber bushing) enhances driving performance. Tower type dust cover (longer service life) is more applicable in harsh high and low-temperature. Thicker handle (high safety performance). CNC machined bushing, housings and sleeves. Professionally precision welded. The upper control arms are stronger than OEM arms and are 100% bolt-on; NOTE: DO NOT use excessive force to prevent copper zerk broken. Alignment is required after installation INCLUDE: 1 pair kit and hardware as shown in picture; Placement on Vehicle: Front, Left, Right, Upper PS: The control arms themselves already come installed ball joints and bushings.We also provide aftermarket ball joints and bushings replacement in our store, No after-sales worries