The ultimate rockcrawling and off-road performance suspension for the 4WD Frontier Pickup. Featured in our system are our signature plate style upper control arms which allow for factory alignment after the lift is installed. Also included in the kit are CALMINI heavy duty torsion bars with a higher than stock spring rate to allow for a higher lift with a comfortable ride. The complete suspension system also includes Vecton control arm bushings, sleeves, new ball joints, laser cut shackles and hardware, rear lift blocks, rear brake line extension brackets and spacers, CALMINI performance shocks, complete hardware, and installation instructions. CONTROL ARMS NOW FEATURE GREASE ZERKS