Silverado 3500 2WD V8-6.6L DSL Turbo VIN 2 (2004)
10. Install the fuel tank filler housing.
11. Install the fuel tank filler housing to fuel tank fill pipe screws.
Tighten
Tighten the screws to 2.3 N.m (20 lb in).
12. Install the fuel tank filler housing to body screws (1) and retainer (2).
Tighten
Tighten the screws to 2.3 N.m (20 lb in).