1997 GMC Sonoma Owner's Manual - Page 371

USAGE Chassis Chassis lubricant Lubrication FLUIDLUBRICANT (GM Part No. 12377985 or equivalent) or lubricant meeting requirements of NLGI # 2, Category LB or GC-LB. Wheel bearing lubricant meeting # 2, requirementsNLGI of Category GC or GC-LB (GM Part No. 1051344 or equivalent). Axle Lubricant (GM Part No. 105227 1) or SAE8OW-90 GL-5 Gear Lubricant. DEXRON@-111Automatic Transmission Fluid. GM Optikleen' Washer Solvent (GM Part No. 1051515) or eauivalent. USAGE Transfer Case Shift Lever, Propeller Shaft Slip Splines and Universal Joints Clutch Pushrod to Clutch Fork Joint FLUIDLUBRICANT Chassis lubricant (GM Part No. I2377985 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 Differential, Front and Rear Axle Transfer Case Windshield Washer Solvent Constant Velocity Universal Joint