2002 GMC Sonoma Owner's Manual - Page 438

USAGE Automatic Transmission Key Lock Cylinders Chassis Lubrication FLUID/LUBRICANT DEXRONR-III Automatic Transmission Fluid. Multi-Purpose Lubricant, SuperlubeR (GM Part No. 12346241 or equivalent). Chassis Lubricant (GM Part No. 12377985 or equivalent) or lubricant meeting requirements of NLGI # 2, Category LB or GC-LB. Wheel bearing lubricant meeting requirements of NLGI # 2, Category GC or GC-LB (GM Part No. 1051344 or equivalent). SAE 80W-90 Axle Lubricant (GM Part No. 1052271 or equivalent). USAGE Rear Axle (Locking Differential) Transfer Case Transfer Case Shift Lever FLUID/LUBRICANT Axle Lubricant; use only GM Part No. 1052271. Do not add friction modifier. DEXRONR-III Automatic Transmission Fluid. Chassis Lubricant (GM Part No. 12377985 or equivalent) or lubricant meeting requirements of NLGI #2, Category LB or GC-LB. Chassis Lubricant (GM Part No. 12377985 or equivalent) or lubricant meeting requirements of NLGI # 2, Category LB or GC-LB. Chassis Lubricant (GM Part No. 12377985 or equivalent) or lubricant meeting requirements of NLGI # 2, Category LB or GC-LB. Front Wheel Bearings Rear Driveline Center Spline and Universal Joints Constant Velocity Universal Joint Front and Rear Axle (Standard Differential) 7-54