C 2500 Truck 2WD V8-5.7L VIN R (1997)
Universal Joint: Description and Operation
Universal joints are designed to handle the effects of various loadings and rear axle windup during acceleration and braking. Within the designed angle
variations, the universal joint will operate efficiently and safely. When the design angle is changed or exceeded, the operational life of the joint may
decrease.
The trunnion bearings used in universal joints are the needle roller type. The:needle rollers are held in place on the trunnions by round bearing cups. The
bearing cups are held in the yokes by either snap rings or injected plastic.
The Original Equipment Manufacturer (OEM) universal joints are lubricated for life and cannot be lubricated on the vehicle. A service kit which
consists of a spider with bearing assemblies and snap rings may be installed if a universal joint becomes worn or noisy. If it becomes necessary to repair
a universal joint, the propeller shaft must be removed from the vehicle. Take care to avoid jamming, bending, or over-angulating any parts of the
propeller shaft assembly. Care should be taken to avoid damage to the propeller weld yokes and slip yoke ears upon installation or removal of U-joints.
