2006 Chevrolet Express Van Owner's Manual - Page 368

Usage Front Wheel Bearings Fluid/Lubricant Wheel bearing lubricant meeting requirements of NLGI #2, Category GC or GC-LB (GM Part No. U.S. 1051344, in Canada 993037). SAE 75W-90 Synthetic Axle Lubricant (GM Part No. U.S. 12378261, in Canada 10953455) or equivalent meeting GM Specification 9986115. DEXRON®-III Automatic Transmission Fluid. Look for "Approved for the H-Specification" on the label. Usage One-Piece Propshaft Slip Yoke Spline, Two-Piece Propshaft Slip-in-Tube Spline Hood Hinges Weatherstrip Conditioning Weatherstrip Squeaks Fluid/Lubricant Spline Lubricant, Special Lubricant (GM Part No. U.S. 12345879, in Canada 10953511) or lubricant meeting requirements of GM 9985830. Multi-Purpose Lubricant, Superlube (GM Part No. U.S. 12346241, in Canada 10953474). Dielectric Silicone Grease (GM Part No. U.S. 12345579, in Canada 992887). Synthetic Grease with Teflon, Superlube (GM Part No. U.S. 12371287, in Canada 10953437). Front and Rear Axle Transfer Case 6-14