Case Extension Assembly Installation. GMC Truck Export GMC P42 Commercial Chassis 2000

For 1990-2009 cars

#### Tools Required

• | J 36850 Transjel® Lubricant

• | J 38694 Extension Housing Seal Installer

• | J 38869 Rear Extension Seal Installer

1. Install the prop shaft front slip yoke oil seal assembly (20) (model dependent) with the J 38869 or the J 38694 (for fixed yoke applications). Apply J 36850 or equivalent to the spring pocket of the seal.
2. Install the transmission output shaft yoke seal sleeve (682) and the output shaft seal (683) (for some models).
3. Install the output shaft seal (675) (for some models).
4. Install the bearing spacer (18), case extension ball bearing assembly (17) and the bearing retainer ring (16) (for some models).
5. Install the case extension seal (15) onto the case extension assembly (19).
6. Install the case extension assembly (19) onto the transmission case.

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 case extension bolts (21).

Tighten
Tighten the bolts to 34 N·m (25 lb ft).