13. If the brake disc TIR is still out of specification, measure and record the thickness of the brake
disc. If thickness is sufficient to machine the brake disc to the runout specification, go to Step
14. If the thickness is not sufficient, install a new brake disc and recheck the TIR.
14. NOTE: Brake disc machining must be done with an on-vehicle lathe. Follow the lathe
manufacturer's instructions.
Machine the brake disc if final thickness will not be less than the maximum specification.
Recheck the brake disc runout.