Truck Replacement Shocks Monroe 65411 Gas-Magnum 65 Shock Absorber 2-3/8 Inch Reserve Tube Its nitrogen gas charge provides the fast response essential for today's heavy truck suspension systems. 65413 Monroe 65 Series Gas Magnum Heavy Truck or Trailer Shock When combined, the gas charge and large-bore provide the consistent control necessary for demanding truck suspensions., 2-3/8 inch (60., 3 mm) reserve tube Buy Monroe Shock Absorber Gas-Magnum 65 Series | 65413 online. Same day shipping available on most parts The Monroe Gas-Magnum 65 shock absorber is the first gas-charged, large-bore shock specifically designed for air spring and taper leaf suspensions. Amortiguadores Para Camion Kodiak Single-lip, low-friction oil seal