Once again I'm gonna play the cynic; I doubt that the OP's sprag failure was really that spontaneous, probably in distress before the R&P failure.
Every one I have ever seen was "spontaneous" or related to a specific indecent of extreme shock to the drive train - if you break a rear-end in first gear this usually happens - the only time I ever had one saved was by the use of a air shifter - the trans shifted to second when it free-wheeled - I still had it checked out to make sure - cause your not gonna find out until the next pass......
