Models equipped with CV style front driveshaft may result in driveshaft vibration. If this occurs, replacing the driveshaft, axle yoke and/or transfer case yoke will be needed to rid the vehicle of driveline vibration.
The X-Series 4" lift kit for the Grand Cherokee ZJ by Rough Country includes front and rear coil springs, front lower and rear upper & lower X-Flex adjustable control arms with Flex joints. The X-Flex control arms include Clevite OEM style rubber bushings, flex joints with 2.5" diameter body and huge 1.25" threads that are adjustable from stock up to 6" of lift. All joints are greasable and fully rebuildable. Upper joints pivot up to 20 degrees, Lower joints pivot up to 35 degrees. Also included are bump stop brackets & extensions, front sway bar links, rear sway bar brackets, track bar bracket, brakeline relocation bracket and 4 RC Nitro shocks. Shock boots sold separately.