INSPECTION
Fig. 1: Disc brake service limits — Navajo and B Series Pick-up rotor shown
Inspect the rotor for cracks, grooves or waviness. Rotors that aren't too badly scored or grooved can be resurfaced by most automotive shops.
Measure the rotor thickness using a caliper gauge.
Minimum rotor thickness should be the following:
Navajo and 1994–97 B Series Pick-up: 0.81 in. (20.5mm)
1998 B Series Pick-up: 1.02 inch (26.0mm)
MPV: 1.02 inch (26.0mm) — front / 0.63 inch (16.0mm) — rear
If refinishing exceeds that, the rotor will have to be replaced.
