GMC 2003 Yukon Owner's Manual page 486

Usage
Synthetic Axle Lubricant; use only
Rear Axle GM Part No. 12378557 (in Canada
(Steerable) 88901362). Do not add friction
modifier.
Transfer Case
(All-Wheel Dexron-III Automatic Transmission
Drive with Fluid.
®
Stabilitrak )
AUTO-TRAK II Fluid (GM Part No.
Automatic
U.S. 12378508, in Canada
Transfer Case
10953626).
Front Axle
Propshaft
Spline or Spline Lubricant, Special Lubricant
One-Piece (GM Part No. U.S. 12345879, in
Propshaft Canada 10953511) or lubricant
Spline meeting requirements of
(Two-Wheel GM 9985830.
Drive with Auto.
Trans.)
6-18
Fluid/Lubricant Usage
Multi-Purpose Lubricant, Superlube
Hood Hinges (GM Part No. U.S. 12346241, in
Canada 10953474, or equivalent).
Outer Tailgate Multi-Purpose Lubricant, Superlube
Handle Pivot (GM Part No. U.S. 12346241, in
Points Canada 10953474, or equivalent).
Dielectric Silicone Grease (GM Part
Weatherstrip
No. U.S. 12345579, in Canada
Conditioning
10953014, or equivalent).
Synthetic Grease with Teflon,
Weatherstrip Superlube (GM Part No. U.S.
Squeaks 12371287, in Canada 10953437, or
equivalent).
Fluid/Lubricant