W250 3/4 Ton Pickup 4WD V8-318 5.2L VIN R 4-bbl (1982)
with precision equipment.
All brake rotors have a minimum thickness dimension cast into them. This dimension is the minimum wear dimension and not a refinish
dimension. Do not use a brake rotor that will not meet the specifications, after refinishing. Replace with a new brake rotor.
NOTE: 1 inch = 25.4mm, so if your micrometer measures in inches and the specified thickness on the disc is in millimeters, convert millimeters to
inches by dividing the specified number of millimeters by 25.4.
Example: Specification on disc is 17.8 mm.
Dividing 17.8mm by 25.4mm/in = 17.8/25.4 = 0.70 inches.