The radius gives the inside corner a lot of extra strength. I would have trimmed the inner diameter of the shim that rests against the small radius. I realize Chrysler didn't have a large radius in that corner but things were built better and stronger back in the day. An undercut allows the manufacturer to get rid of the corner and still have room for a radius in the undercut. I'm a machinist and know how important a radius can be in preventing stress fractures at a critical point. Remember that the threaded shoulder where the bearing mounts has to handle ALL the load of the engine torque when you stomp on the gas pedal! Hope you didn't have the machine shop put a sharp corner in place of the radius because even a 1/32" or a 1/64 radius is stronger than a sharp corner.??? Wishing you luck with your build!!:thumbsup:
treblig
