You can use the 12V starter and flywheel with the original bellhousing. Your grinding might be a bad Bendix drive on the starter. You'll use the 12V one so that possible problem won't reoccur if caused by the Bendix. Don't mix them up. They look almost the same. If the starter is from a car you'll have a solenoid so you'll have to wire in a push button for the starter or get a truck starter up through 59.
