The Monroe Shocks & Struts Rubber Cab Shock Absorber is the perfect solution for heavy-duty cab suspensions. Designed to deliver exceptional control and isolate impact-related noise, vibration, and harshness under most driving conditions, this shock absorber is a must-have for any Mack truck owner. The nitrogen gas-charge maintains tire-to-road contact for improved ride and handling by reducing aeration and shock fade. The cab shock isolates the cab from the frame for a smoother ride, while the velocity-sensitive valving delivers a new standard in driver comfort. With exclusive 10-stage valving, this shock absorber provides consistent control at all speeds. FleetPride is your First Click in Heavy Duty®.