For 1990-2009 cars

### Removal Procedure

1. Position the sunroof window to the vent position.
2. Pull the rubber lifter arm bumper from the rear of the lifter arm.

### Installation Procedure

1. Push the lifter arm bumper through the hole in the rear of the lifter arm.

Apply a drop of rubber sealant, GM P/N 123445739, or equivalent, to the rubber bumper before pressing through the hole

2. Close the sunroof.