'64 Dart, '73 Scamp. What's the difference???

You will regret it if you buy a "remanufactured" starter (of any spec for any year). They are unreliable junk and they sound like hair-raising hell every time you turn the key. If you want a new original Chrysler starter, you can get it from Old Car Parts Northwest. If you want to swap to the mini starter, see here.