2003 GMC Sierra 1500 Pickup Owner's Manual - Page 519

Usage Hood Hinges Body Door Hinge Pins, Tailgate Hinge and Linkage, Folding Seat and Fuel Door Hinge Multi-Purpose Lubricant, Superlube (GM Part No. U.S. 12346241, in Canada 10953474, or equivalent). Usage Weatherstrip Conditioning Weatherstrip Squeaks Fluid/Lubricant Dielectric Silicone Grease (GM Part No. US. 12345579, in Canada 1974984, or equivalent). Synthetic Grease with Teflon, Superlube (GM Part No. U.S. 12371287, in Canada 10953437, or equivalent). Mulit-Purpose Lubricant, Superlube (GM Part No. U.S. 12346241, in Canada 10953474, or equivalent). Tailgate Handle Multi-Purpose Lubricant, Superlube Pivot Points, Hinges, Latch (GM Part No. U.S 12346241, in Canada 10953474, or equivalent). Bolt and Linkage 6-20