Tanks, Sheriff41. I bought a 31 spline main shaft, 351C conversion, from David Kee's. I did not know he had a chart for Bell's. The Main shaft has fluting, same as OEM and perfect fit. I like his blocker's as well. https://www.facebook.com/marketplace/item/182539887905226
I am trying to replace the stripped parts from a Mach 1. It was re-powered with a 302, 3 speed toploader and a 8" rear with non-staggered shocks. This was purchased near Boston. Car is solid from NM.