[Floyd]

Not to sound like a wiseguy, but please define "rebuilt starter". All too often they get opened up, checked for brush wear and put back together. Except for a loose/broken wire or terminal screw, the usual problem is tracked down to worn bushings. Brushes almost never wear out. The front and rear bushings always wear out and are hard to detect. You can not just slide the armature into the bushing and rock it. The fit needs to be perfect. Very common problem in the "won't crank when hot". If it does not have new bushings then it is not rebuilt. NOS rear plates with bushing installed are available. Front bushings are easier to replace as they are not blind like the rears.