Silverado 1500 4WD V8-6.0L VIN U (2006)
Brake Drum: Specifications
Maximum Allowable Diameter ......................................................................................................................................................... 296.5 mm (11.673 inch)
Maximum Allowable Radial Runout .................................................................................................................................................. 0.06 mm (0.0024 inch)
Maximum Allowable Scoring ................................................................................................................................................................... 1.5 mm (0.06 inch)