Drive End

1. Clean the armature shaft.
2. Lubricate the area that will be under the drive assembly, using GM P/N 1960954 lubricant or equivalent.
3. Install the drive assembly onto the armature shaft.



4. Install the pinion stop collar with the flat side of the collar facing the drive pinion.
5. Install the new retaining ring onto the armature shaft.
6. Slide the ring down the shaft so that it seats into the shaft groove.
7. Thrust the collar onto the shaft, with the small flange facing the retaining clip.



8. Using two sets of pliers, push the pinion stop collar and thrust collar together, so as to snap the stop collar onto the retaining ring.
9. Inspect the drive end bearing.

•	If lubrication is not visible, replace the bearing using a suitable driver and hammer.

•	Do not lubricate the bearing.

10. Install the new drive end bearing, by pressing it until it recesses into the casing 1.6 mm (0.06 in).
11. Do not add lubricant to the new drive end bearing. It is prelubricated.



12. Install the shift lever to the drive assembly, by slightly spreading the arms and snapping it onto the drive collar buttons.
13. Install the plunger to the lever, by snapping it into place. Be sure to note which side of the lever is up.
14. Install the armature shaft into the drive end bearing, while sliding the shift lever retainer into the drive end housing slot.
15. Install the spring onto the plunger.
16. Install the plug.
17. Install the solenoid and the clamp onto the drive end frame, aligning the (M) terminal with the field connector.
18. Install the clamp retaining screws.

Tighten
Tighten the solenoid clamp retaining screws to 11 N·m (95 lb in).

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

Frame and Field Assembly

1. Install the frame-and-field assembly onto the armature.

1.1.	Clean the contact faces of the brushes and the commutator, with a soft cloth.

1.2.	While installing the frame, push the brushes into the brush holders and hold them into place.

1.3.	Align the frame scribe mark with the drive end frame scribe mark.

1.4.	Release the brushes onto the commutator, ensuring that all of the brushes move freely while contacting the commutator.

2. Install the brake washer to the armature assembly.
3. Install the drain tube to the frame, if required.
4. Install the end frame to the field frame.

•	Replace the end frame bearing if it appears unlubricated or damaged.

•	Recess the new bearing 2 mm (0.08 inch) into the housing.

•	Do not lubricate the bearing. The bearing is pre-lubricated.

5. Install the identification tag over the end frame hole, with the fluted end around the bearing well.
6. Install the through-bolts in their original locations.

Tighten
Tighten the through-bolts to 8.5 N·m (75 lb in).

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

7. Install the motor field lead over the solenoid motor terminal.
8. Install the field lead attaching nut.

Tighten
Tighten the field lead attaching nut to 11 N·m (95 lb in).




9. Install the solenoid shield onto the protruding ends of the solenoid attachment screws.
10. Install the shield-attaching nuts.

Tighten
Tighten the shield-attaching nuts to  N·m (70 lb in).