Installation Procedure

Important:  When installing a NEW crankshaft rear oil seal housing the crankshaft rear oil seal will come with the housing. If reusing the housing and then installing a NEW seal follow the instructions for installing the housing and than Refer to Crankshaft Rear Oil Seal Replacement  to install the seal.

1. Install a NEW crankshaft rear oil seal housing gasket.
   Fig 1: Crankshaft Rear Oil Seal Housing Gasket

   Courtesy of GENERAL MOTORS CORP.
2. Install the NEW crankshaft rear oil seal housing with the oil seal to the engine block using the following procedure.

   Important:  Do not oil or grease the seal lip or the crankshaft seal area.

   1. 2.1. Leave the sleeve in the crankshaft rear oil seal and use the sleeve as a guide to ease the seal lip over the end of the crankshaft.
   2. 2.2. Push the crankshaft rear oil seal housing fully onto the crankshaft until the crankshaft rear oil seal housing is against the crankshaft rear oil seal gasket and the engine.
   3. 2.3. Remove the sleeve.
   NOTE: Refer to FASTENER NOTICE .
3. Install the bolts and the nut to the crankshaft rear oil seal housing.

   Tighten 

   Tighten the crankshaft rear oil seal housing bolts and nut to 12 N.m (106 lb in).

Fig 2: Crankshaft Rear Oil Seal Housing, Bolts & Nut
Courtesy of GENERAL MOTORS CORP.
4. Install the engine flywheel. Refer to Engine Flywheel Replacement .
5. Install the transmission assembly.
   • Refer to TRANSMISSION for Automatic Transmission - 4L60-E.
   • Refer to TRANSMISSION REPLACEMENT for Manual Transmission - NV 3500.
6. Install the oil pan Refer to Oil Pan Replacement (2WD)  or Oil Pan Replacement (4WD) .