Installation Procedure

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Install a NEW rear output shaft bushing, if required using the J 45380
- Install the bushing or the finger section of the J 45380.
- Install the finger section to the main body of the J 45380.
- Position the bushing and tool to the case.
- Using a hammer and the J 45380, install the bushing.
  
  Fig 1: Install Rear Output Shaft Bushing Using J 45380
  Courtesy of GENERAL MOTORS CORP.
IMPORTANT: Ensure the drain hole on the boot of the rear output shaft seal is facing down toward the ground
Using the J 37668-A, install the rear output shaft seal.
Install the rear propeller shaft. Refer to PROPELLER SHAFT REPLACEMENT-ONE PIECE or PROPELLER SHAFT REPLACEMENT-TWO PIECE .
Check the fluid level, add fluid if necessary.
Install the transfer case shield, if necessary. Refer to Transfer Case Fluid Replacement .

Fig 2: Installing Rear Output Shaft Seal Using J 37668-A
Courtesy of GENERAL MOTORS CORP.