Sierra 1500 4WD V8-5.3L VIN Z Flex Fuel (2005)
1. Install the rear bases with pads attached to the vehicle.
Notice: Refer to Fastener Notice in Service Precautions.
2. Install the rear base fasteners (2).
Tighten the rear base fasteners to 2 N.m (18 lb in).
3. Install the center supports with pads to the vehicle.
4. Install the support fasteners.
Tighten the support fasteners to 3 N.m (27 lb in).
5. With an assistant, lift the carrier (1) to the vehicle roof.
6. With an assistant, set the carrier assembly rails on the rear support assembly and pull forward, locking the carrier to the supports.
7. Install the fasteners (4) to the side rail/rear base.
Tighten the side rail/rear base fasteners to 3 N.m (27 lb in).
8. Install the roller bar/rear cross rail assembly to the vehicle.
9. Install the fasteners (1) to each side of the rear base.
Tighten the rear base fasteners to 3 N.m (27 lb in).
10. Install the fasteners to the front bases.
Tighten the front base fasteners to 3 N.m (27 lb in).
