RAM 2500 Truck 4WD V8-5.9L VIN Z LDC (1998)
Drive/Propeller Shaft: Description and Operation
GENERAL INFORMATION
The function of a propeller shaft is to transmit power from one point to another in a smooth action. The shaft is designed to send torque through an
angle from the transmission (transfer case on 4WD vehicles) to the axle.
The propeller shaft must operate through constantly changing relative angles between the transmission and axle. It must also be capable of changing
length while transmitting torque. The axle rides suspended by springs in a floating motion. This means the propeller shaft must be able to change
angles when going over various roads. This is accomplished through universal joints, which permit the propeller shaft to operate at different angles.
The slip joints (or yokes) permit contraction or expansion.
Tubular propeller shafts are balanced by the manufacturer with weights spot welded to the tube.
Before undercoating a vehicle, the propeller shaft and the U-joints should be removed if possible. If removal is not possible, make sure that the
propeller shaft and u-joints are fully covered. This will prevent the undercoating from causing an out of balance condition and vibration.
CAUTION: Use exact replacement parts for attaching the propeller shafts to ensure safe operation. The specified torque must always be applied
when tightening the fasteners.
