GM Service Manual Online
For 1990-2009 cars only

Crankshaft Front Cover Oil Seal Replacement for GMC Truck Savana 1998

Removal Procedure

  1. Remove the flywheel and transmission assembly. Refer to Transmission Replacement and Transmission Replacement in Transmission/Transaxle.

  2. Object Number: 31379  Size: SH
  3. Remove the crankshaft real oil seal by prying the arrows, then discard it.

Installation Procedure

Tools Required

J 35621-A Crankshaft Rear Oil Seal Installer


    Object Number: 23781  Size: SH
  1. Use the J 35621-A in order to install the NEW oil seal.
  2. Install the flywheel and transmission assembly. Refer to Transmission Replacement and Transmission Replacement in Transmission/Transaxle.