Thanks Nelson. I didn't change anything except the internals of the Prestolite starter that the rebuild shop used. Everyone keeps saying the bolts, but I can't even remove the bolts that hold the starter on. So it's the exact same setup that's been used for 63 years. (The top bolt will spin, so I'll need to wrench both sides, but not for the bottom mounting bolt.) I can't locate any torque guide, so I just make sure they are nice and tight. Bob from Avantiparts.biz is sending me the starter drive to have a shop install, as I'm guessing that a hydraulic press will be needed?