Sierra 3500 4WD V8-6.6L DSL Turbo VIN 2 (2004)
6. With the output gear encoder assembly in hand, carefully align the casting and output gear timing marks (1).
7. At the same time, be sure to align the encoder phasing post (1) with the phasing slot (2) in the casting and insert the shaft into the bushing.
8. Verify that the output gear and idler are engaged properly.
9. Seat the harness wires on the casting channel.
10. Place the shim on the output shaft gear.
11. Press a NEW seal into the cover.