You need to support the propeller shaft, mark the propeller shaft, disassemble the snap rings, place the universal joint, and place J 9522-3 on the open horizontal bearing cups. Press the lower bearing cup out of the yoke ear, rotate the propeller shaft, press the opposite bearing cup out of the yoke, mark the orientation of the slip yoke, remove the cross and the remaining universal joint parts, inspect the retaining ring grooves for dirt, corrosion, or pieces of the old ring and the bearing cup bores, and clean the retaining ring grooves.