I'm setting up power steering on my 68 SS/RS 350. No smog pump or A/C. I have everything I need except a 3 groove crankshaft pully. I don't see one in any of the repop catalogs. I have an old '66 327 sitting in my garage that has a 2-piece 3 groove crankshaft pully on it. Can someone tell me if this would work? Was the original 3 groove pully on a 68 350 a one peice or two peice design? Thanks.