110 Maintenance DriveShaft DANGER If the driveshaft universal joints are not lubricated properly, they can be damaged to the point of the driveshaft separating from the vehicle. Driveshaft separation may cause loss of control of the vehicle resulting in severe personal injury or death. Note: RPL drivelines are not greaseable. Note: Make sure grease is purging from all four ends of the universal joint. If the universal joint can not be properly lubricated, replace it. Rear Axle General Note: Most rear axles today are run with a synthetic base oil. The Volvo rear axles are an exception. DO NOT use a synthetic base oil in Volvo rear axles. Seals will deteriorate and leaks will develop.
Rear axles should not be operated if the oil temperature exceeds 250 F (120 C). Choose the correct viscosity for the temperature the vehicle is operated in. See page 142 for the beginning of viscosity charts.