1997 Chevrolet Astro Owner's Manual - Page 354

Long TriplHighway Maintenance Schedule I The services shown in this schedule up to 100,000 miles ( 166 000 km) should be performed after 100,000 miles (166 000 km) atthe same intervals. Theservices shown at 150,000 miles (240 000 km) should be performed at the sameinterval after 150,000 miles (240 000 km). See "Owner Checks Services" and"Periodic and Maintenance Inspections" following. # Lubricate the front suspension, ball joints and kingpin bushings, steering linkage and transfer case shift linkage, parking brake cable guides, and brake pedal springs. + A good time to check your brakes is during tire rotation. See "Brake System Inspection"under "Periodic Maintenance Inspections" in Part C of this schedule. Footnotes The U.S. Environmental Protection Agency or the California Air Resources Board has determined that the failure toperform this maintenance item will not nullify the emissionwarranty or limit recall liability prior to the completion of the vehicle's useful life. We, however, urge that all recommended maintenance services be performed at the indicated intervals and the maintenance be recorded. ** Drive axle service (see "Recommended Fluids and Lubricants" in the Index for proper lubricant to use): 0 Locking Differential -- Drain fluid and refill at first engine oil change. subsequent oil changes, check At fluid level and add fluid as needed. Standard Differential -- Check fluid level and add fluid asneeded at every engine oil change. 0 7-30