Express 3/4 Ton Van V6-4.3L VIN W (1998)
2. Position the driveshaft and clutch group on a work bench with the internal gear end down.
3. Fabricate a tube approximately 22 mm wide (2). Drive the pinion stop toward the clutch drive assembly until it clears the stop rings.
4. Pry the stop rings out of the driveshaft groove and slide them off the end of the shaft. Do not scratch the driveshaft.
5. Inspect the edges of the shaft groove for burrs that may have been formed through repeated cranking cycles. These burrs may make removal of the
pinion stop and clutch drive assembly difficult.
6. Slide the pinion stop off the driveshaft. Discard the old pinion stop and stop rings. New parts must be used at assembly.
7. Disassemble the driveshaft support from the driveshaft. Do not remove the bearing from the driveshaft unless replacement is required.
Starter Motor Overhaul (SD-260 Drive-End Frame Assem)
Replacing The Pinion Stop Collar
1. Wipe the armature shaft clean.
2. Lubricate the area that will be under the drive assembly. Use lubricant GM P/N 1960954 or equivalent.
3. Wipe the drive assembly clean
4. Assemble the drive assembly onto the armature shaft.
5. Assemble the pinion stop collar with the flat side of the collar toward the drive pinion.
6. Assemble the new retaining ring onto the armature shaft. Slide the ring down the shaft until it seats in the shaft grove.
7. Assemble the thrust collar onto the shaft with the small flange toward the retaining ring. Using two sets of pliers, push the pinion stop collar and
