Just got the 250 back from rebuild, and i had a simple question. What is the correct way to replace the flywheel? There is an extra hole in the bolt pattern on the inside and two small ball shaped indents near the teeth. I just need to know how to line it up because i searched my 66' Chevy service manual and couldnt find what i was looking for. Also, my flywheel is pretty rusty (just surface it seems) from not having a convertor/flywheel shield (whatever its called) for years. Would it be safe to strip the rust with a wire wheel or should i get a new wheel? And does anyone know where i can get the aforementioned shield? This is all for a 250/pg/column shift in a 66' Chevy bel-air.