OVERHAUL

Selective snaprings are used to provide proper clearance of the gearing cap-to-yoke. The clearance should be 0.0007 in. (0.02mm) and the opposing snaprings must be of the same thickness.

As a rule, the driveshaft U-joints should not be removed since the driveshaft is balanced at the factory and the U-joints are constructed to be maintenance free. However, if removal and overhaul of the U-joints should become necessary, proceed as follows.

1. Remove the driveshaft as outlined.
2. Matchmark the flange yoke, sleeve yoke and U-joint in such a way that it can be reassembled exactly as it was.
3. Remove the snaprings which retain the bearing races one at a time by using a flat-blade prybar.
4. Remove the bearing race by tapping on the other side of the yoke with a hammer.
5. Repeat Steps 3 and 4 until the U-joint is free.
6. Reassemble in the reverse order of removal.
7. Be sure to align the matchmarks and to use new grease.
8. It is also necessary to measure the side play of the U-joints in each direction. The proper play, after installation of the U-joint, is 0.0003 in. (0.1mm). Snaprings of various sizes are available to achieve this tolerance (they range from 0.07–0.08 in. (1.9–2.1mm). Also, the opposing snaprings must be of the same thickness.

   Fig. 2: Selective snaprings are used to obtain the proper clearance between the bearing cap and yoke