Drive End

Replacing The Pinion Stop Collar:

ASSEMBLE
^ Wipe the armature shaft clean and lubricate the area that will be under the drive assembly. Use Lubricant GM PIN 1980954 or equivalent.
^ Wipe the drive assembly clean.

1. Drive assembly onto the armature shaft.
2. Pinion stop collar with the flat side of the collar toward the drive pinion.
3. New retaining ring onto the armature shaft.
^ Slide the ring down the shaft until it seats in the shaft groove.
4. Thrust collar onto the shaft with the small flange toward the retaining ring.

Forcing The Collar Over The Retaining Ring:

^ Using two sets of pliers, push the pinion stop collar and thrust collar together to snap the stop collar onto the retaining ring.

Inspect
^ Drive end bearing. If no lubrication is visible, replace the bearing using a suitable driver and hammer. Do not lubricate the bearing.

5. New drive end bearing by pressing it in until it is recessed 1.6 mm (0.06 inch) into the casing. It is prelubricated, so do not add lubricant.
6. Shift lever to the drive assembly by spreading the arms slightly to snap it onto the buttons on the drive collar.

Armature, Drive And Shift Lever Assembly:

7. Plunger to the lever by snapping into place. Note which side of the lever is up.
8. Armature shaft into the drive end bearing while sliding the shift lever retainer into the slot on the drive end housing.
9. Spring onto the plunger.
10. Plug.
11. Solenoid and clamp onto the drive end frame, aligning the "M" terminal with the field connector.
12. Clamp retaining screws.
Tighten
^ Solenoid clamp retaining screws to 11 N.m (95 lb in).