2006 GMC Yukon Owner's Manual - Page 504

Usage Front Axle (Four-Wheel Drive) Front Axle (All-Wheel Drive) Fluid/Lubricant SAE 80W-90 Axle Lubricant (GM Part No. U.S. 1052271, in Canada 10950849). SAE 75W-90 Synthetic Axle Lubricant (GM Part No. U.S. 12378261, in Canada 10953455) meeting GM Specification 9986115. SAE 75W-90 Synthetic Axle Lubricant (GM Part No. U.S. 12378261, in Canada 10953455) meeting GM Specification 9986115. DEXRON -III Automatic Transmission Fluid. Look for "Approved for the H-Specification" on the label. AUTO-TRAK II Fluid (GM Part No. U.S. 12378508, in Canada 10953626). ® Usage Front Axle Propshaft Spline or One-Piece Propshaft Spline (Two-Wheel Drive with Auto. Trans.) Hood Hinges Outer Tailgate Handle Pivot Points 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. Rear Axle Multi-Purpose Lubricant, Superlube (GM Part No. U.S. 12346241, in Canada 10953474). 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). Transfer Case (All-Wheel Drive with StabiliTrak®) Automatic Transfer Case (Four-Wheel Drive) 6-14