V 20 P/U 4WD V8-379 6.2L DSL (1988)
Fig. 3 Cross & Roller Type Universal Joints
Fig. 4 Cross & Roller Type Universal Joints & Propeller Shaft
Before disassembling any universal joint, examine the assembly carefully and note the position of the grease fitting (if used). Also, be sure to mark the
yokes with relation to the propeller shaft so they may be reassembled in the same relative position. Failure to observe these precautions may produce
rough vehicle operation which results in rapid wear and failure of parts, and place an unbalanced load on transmission, engine and rear axle.
When universal joints are disassembled for lubrication or inspection, and the old parts are to be reinstalled, special care must be exercised to avoid
damage to universal joint spider or cross and bearing cups.
Some driveshafts use an injected nylon retainer to hold the bearing cups. When service is necessary, pressing the cups out will sheer the nylon retainer,
Fig. 1. Replacement with the conventional steel snap ring type is then necessary, Fig. 2.
Figs. 3 and 4 illustrate typical examples of universal joints of this type. They all operate on the same principle and similar service and replacement
procedures may be applied to all.
Fig. 7 Removing Bearing Cups Using Tool & Adapter