1995 GMC Sonoma Owner's Manual - Page 314

Maintenance ScheduleII The services shown in this schedule up to 100,000 miles ( I 66 000 km) should be performed after 100,000 miles ( 166 000 km) at the same intervals. Footnotes -? The California Air Resources Board has determined that the failure to perform this maintenance item will not nullify the emission warranty or limit recall liability prior to the completion of vehicle useful life. We, however, urge that all recommended maintenance services be performed at the indicated intervals and the maintenance be recorded. *! :: Drive axle service: a Locking Differential - Drain tluid and refill at first engine oil change. At subsequent oil changes, check fluid level and add fluid as needed. If driving in dusty areas or towing a trailer, drain fluid and refill every 15,000 miles (25 000 km). a Standard Differential - Check .fluid level and add fluid as needed at every engine oil change. If driving in dusty areas or towing a trailer, drain fluid and refill every 15,000 miles (25 000 km). a More frequent lubrication may be required for heavy-duty or off-road use. 7,500 Miles (12 500 km) 0 Change engine oil and filter (or every 12 months, whichever occurs first). An Elnission Contwl Service. I7 Lubricate the front suspension, ball joints, steering linkage and transfer case shift linkage, parking brake cable guides, propshaft splines, universal joints, brake pedal springs, and clutch pedal springs (or every 12 months, whichever occurs first). 0 Check readfront axle fluid level and add fluid a s needed. Check constant velocity joints and axle seals for leaking.'g'J: 0 Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. DATE ACTUAL MILEAGE SERVICED BY: 7-26