strictlypersonal Pat is a special guy, not sure where this parade leads too.My thought was about making the thing unable to ever come apart again without adding J&B welding or 2 part epoxy to the splines. Long Bolt drilled on the other end with a small cotter pin or spring clip as a safety clip would work like safety wiring the spinners on the pin drives. It was just a brain fart. Have a nice day Bob. Hope the AC is working in your Office. Has Pete helped with an oxygen tank in that thin air you work in? Rick L.