Inspect the brake linings every 6,000 miles (9,654 kilometers) and anytime the wheels are removed (tire rotation, etc.). Replace the brake shoe and the lining assemblies whenever the thickness of any lining is worn to within 0.76 mm (0.030 in) of the shoe. Replace the riveted shoe and the lining assemblies when the lining is worn to within 0.76 mm (0.030 in) of any rivet head. Always replace the brake shoe and the lining assemblies as a complete axle set.