Case Extension Assembly Removal

WARNING: This page does not describe the selected car, but rather 13 other vehicles, including the 2005 GMC Yukon XL, 2005 GMC Sierra, 2005 GMC Savana Special, 2005 GMC Savana Camper Special, and 2005 GMC Savana. However, it is still accessible from the selected car via links, so may be relevant.

Tools Required

J 23129 Universal Seal Remover. See Special Tools .
J 6125-1B Slide Hammer. See Special Tools .

Fig 1: Removing Prop Shaft Front Slip Yoke Seal Assembly

Courtesy of GENERAL MOTORS CORP.

Using the J 23129 and the J 6125-1B , remove the prop shaft front slip yoke seal assembly (20) (model dependent). See Special Tools .

Fig 2: Removing Case Extension Assembly

Courtesy of GENERAL MOTORS CORP.

Remove the case extension bolts (21).
Remove the case extension assembly (19).
Remove the case extension seal (15).
Remove the following components and inspect for damage and wear:
- The output shaft seal (675) (for some models)
- The transmission output shaft yoke seal sleeve (682) and output shaft seal (683) (for some models)
- The bearing retainer ring (16), case extension ball bearing assembly (17), and bearing spacer (18) (for some models)