For 1990-2009 cars

### Removal Procedure

1. Remove the crankshaft balancer. Refer to Crankshaft Balancer Replacement .
2. Use a screwdriver to pry out the crankshaft front oil seal. Use care in order to avoid damage to the seal bore or seal contact surfaces.

### Installation Procedure

#### Tools Required

J 35354 Seal Installer

1. Install the crankshaft front oil seal. Use the J 35354 and a soft faced hammer.
2. Remove the J 35354 .
3. Coat the outside seal surface of the crankshaft balancer with lubricant GM P/N 12377985 or equivalent.
4. Install the crankshaft balancer. Refer to Crankshaft Balancer Replacement .