GM 24236132
Extension Housing Seal

Proper vehicle support and lift techniques enable changing the front output shaft seal. You must first remove the transfer case shield (if present) before taking out the front propeller shaft. The internal front output shaft seal consists of two pieces which include an inner force-fit component that mounts on the output shaft. A flat-tipped screwdriver should be used first to shift the inner seal race forward before using a small pry bar for complete removal from the front output shaft. A flat-tipped screwdriver or small pry bar should be inserted into the space between the outer race lip and the transfer case to remove the remaining output shaft seal portion. To install new seals users must connect the output shaft seal installer (J 43484) to driver handle (J 8092) before inserting the seal onto the installer. The seal installation requires both tools to be used for mounting onto the front output shaft. The front propeller shaft installation proceeds next and the fluid level requires inspection and appropriate fluid addition before replacement of the transfer case shield if present. Lastly, the vehicle needs to be lowered down.

Reinstall the rear propeller shaft.

J8092 Universal Handle and J43484 Front Output Shaft Seal Installer.

The part numbers on the seal should be facing outward toward the technician.

First, take out the inner sleeve, followed by the outer area of the seal.

Utilize the Rear Output Shaft Seal Installer (J45756).

Use the hammer and the selected tool to install the bushing.

By prying it out with a flat-tipped screwdriver.

Reinstall the transfer case shield if equipped and lower the vehicle.

A two-piece internal seal, with the inner seal being force fit on the front output shaft.

J 36825 (Output Shaft Oil Seal Remover) and J 23907 (Slide Hammer).

First, remove the transfer case.

First, raise and suitably support the vehicle.

Raise and support the vehicle.

A sharp punch may be necessary to create a hole in the seal.

Reinstall the transfer case.