Rebuilding Starter Motors

".Rebuilding starter motors first check that the problem is really the starter. Rebuilt starters can run near $200 now days, but rebuilding it yourself is not hard. Measure the voltage over the starter itself while cranking, from the positive I put terminal on the starter to the starter housing. If it is not starting at all, no noise, no click, despite having 12V at both starter and solenoid, .