I have a 1965 mustang, 289 v8, with a 3 speed manual transmission, but it's is not a gt350. I need to replace my flywheel because my current one is missing a few chunks of teeth and my brand new mini stater is grinding and destroying itself. My question is, what is the tooth count I need to get? There seems to be either 157 or 164 tooth, but I can't find any clear information on what actually fits my setup. My starter specifies 164 tooth (and I think that's whats in it right now), but can I interchange 164 and 157 tooth? Could I also just order a ring gear and have a shop press it on so I don't have to replace the clutch too?