Sierra 1500 2WD V6-4.3L VIN X (2004)
12. Note the position of the rotor segment.
13. Place a second mark on the base of the distributor (2).
This will aid in achieving proper rotor alignment during distributor installation.
INSTALLATION PROCEDURE 1
1. If installing a NEW distributor, place 2 marks on the new distributor housing in the same location as the marks on the original housing.
2. Align the rotor with the second mark (2).
3. Install the distributor.
4. Align the hole in the distributor hold-down clamp over the hole in the intake manifold.