Yukon/Denali XL 1500 2WD V8-5.3L VIN Z Flex Fuel (2004)
7. Tighten the assist step fasteners in the following sequence:
1. Tighten the bracket bolt (6) to 25 N.m (18 lb ft).
2. Tighten the assist step bracket nut (2) to 9 N.m (80 lb in).
3. Tighten the assist step to the bracket nut (3) to 9 N.m (80 lb in).
8. Install the assist step rear cover to the vehicle.
9. Install the clip retainer.
10. Install the assist step front cover to the vehicle.
11. Install the push-in retainer.
