04-03-2020, 12:57 PM
The failure in the "cut & shut" half shaft is down to poor weld penetration between the two halves, not the concept itself. I'm sure this can be recovered, as Charles said by creating a 'V' between the two machined ends and then building up with weld. Personally I would belt & brace it by two pins through both halves, at 90° to each other, both welded in place, with the repair machined back down to diameter.