1996 GMC Sonoma Owner's Manual - Page 332

Long Tripmighway Maintenance Schedule I 60,000 Miles (100 000 km) 0Change engineoil and filter (or every 12 months, whichever occurs first). 0For Two-Wheel-Drive vehicles only: Clean and repack the front wheel bearings (or at each brake relining, whichever occurs first). 0Inspect engine accessory drive belt. 0Replace fuelfilter. An Emission Control Service.? An Emission Control Service. 0Lubricate the front suspension, ball joints, steering linkage and transfer caseshift linkage, parking brake cableguides, 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 asneeded. Check constant velocity joints and axle seals forleaking.** 0Replace air cleaner filter. An Emission Control Service. 0Inspect fuel tank, cap and lines for damage or leaks. Inspect fuel cap gasket for any damage. Replace parts as needed. An Emission Control Service. 7-40