1996 GMC Sonoma Owner's Manual - Page 327

Long Tripmighway Maintenance Schedult: 30,000 Miles (50 000 km) 0Check readfront axle fluidlevel and add fluid as needed. Check constant velocity joints and axle seals for leaking? 0Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. 0Change engineoil and filter (or every 12 months, whichever occurs first). An Emission Control Service. 0Lubricate the front suspension, ball joints, steering linkageand transfer case shift linkage, parking brake cable guides, propshaft splines, universal joints, brake pedal springs and clutch pedal springs at every oil change (or every 12 months, whichever occurs first). 0Check readfront axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking.** (Continued) I I I 1 DATE ACTUAL MILEAGE SERVICED B Y 7-35