The Monroe Gas-Magnum 60 shock absorber is gas-charged for quicker response and a stable, more comfortable ride. Replacing worn-out units with hard-working Gas-Magnum 60 shocks can help reduce excessive vibration. The result can be better tire life, less downtime and a lower cost per mile. Product Features:Multi-lip fluid seal designed for smooth performance, long life and reduced frictionNitrogen Gas Charged: For improved ride and handling, helps maintain tire to road contact by reducing aeration.2 or 2-3/8 (50.8 mm or 60.3 mm) reserve tube (where required)1-3/8 inch (34.9 mm) bore (On most applications)5/8-inch (15.9 mm) diameter piston rod (On most applications)Resistance and arc-welded mounts, provide 9,500 lbs. (4,309 kg) of tensile strength for maximum durability (on most applications)Patented unique hydraulic rebound lockout (when required)Special Self-lubricating fluid seal designed to retain gas without excessive wear or friction.