Gabriel 77421 MAX CONTROL Monotube Shock Absorber Performance designed Monotube for trucks, vans & SUVs, chromed rod MaxComfort  Larger 1 1316 (46mm) bore size allows the shock to react quicker to bumps and other road imperfections, creating the smoothest ride possible MaxEndurance  Single-tube design and multi-stage sealing minimize chamber temperature and debris entry for longer-lasting performance MaxPerformance  High-pressure nitrogen gas and floating piston technology allow the shock to immediately react to steering wheel movements, providing the ultimate in handling and performance MaxSafety  Sensitivity and quick response time keep tires in contact with the road to maximize braking effectiveness, keeping you in control at all times