Isuzu 2000 Trooper Workshop Manual page 686

5C–36 POWER ASSISTED BRAKE SYSTEM
After refinishing, replace any rotor that does not meet the
minimum thickness of 24.97 mm (0.983 in). Do not use a
brake rotor that will not meet the specification.
Minimum wear dimension: 24.60 mm (0.969 in)
Refinish dimension: 24.97 mm (0.983 in)
411RW003