2003 GMC Sonoma Owner's Manual - Page 400
2003 GMC Sonoma Manual
Page 400 highlights
Fluid/Lubricant Axle Lubricant; use only GM Part Rear Axle No. U S . 1052271, in Canada Do not add friction (Locking 10950849. Differential) modifier. TransferCase Transfer Case Shift Lever Rear Driveline Center Spline and Universal Joints Constant Velocity Universal Joint Clutch Pushrod to Clutch Fork Joint Usage - I I DEXRON@-IllAutomatic Transmission Fluid. Chassis Lubricant (GM Part No. U S . 12377985, in Canada 88901242, or equivalent) or lubricant meeting requirements of NLGl #2, Cateaorv LB or GC-LB. Chassis Lubricant (GM Part No. U.S. 12377985, in Canada 88901242, or equivalent) or lubricant meeting requirements of NLGl #2, Category LB or GC-LB. Chassis Lubricant (GM Part No. U.S. 12377985, in Canada 88901242, or equivalent) or lubricant meeting requirements of NLGl #2, Cateaow LB or GC-LB. Chassis Lubricant (GM Part No. U.S. 12377985, in Canada 88901242, or equivalent) or lubricant meeting requirements of NLGl #2, Cateaow LB or GC-LB. 6-33