A couple years ago, I bought a Powermaster starter for my Road Runner. Got it installed, and tried to turn the engine over, and the starter gear was rubbing the flywheel ring gear. No problem... they send a shim with the starter. Pull the starter, install the shim, reinstall the starter.. the gear is now hung up on the flywheel ring gear... Pull the starter back out, remove the billet adapter to fit a Mopar, and install just that, with the bendix. The mounting holes are in the wrong location, just a touch, and simple enough? Open up the holes a little, test fit it, and it's working smoothly. Reinstall the adapter/bendix, install the starter, and hit the switch. Piece of junk sounds like a 6V starter from a Farmall M... I'm DONE with this POS. I just happened to pick up a new Denso for my 69, and it will be here tomorrow. Guess I know where it's going now.