RIO, i bought the same exact MARCH pullies, but thee weren't enough threads left on the alt. shaft to thread the nut on with the split ring lock washer on it, were you able to get yours on with no trouble, or were there only a couple threads caught? what'd you do if so as a remedy?
I put those on early this Summer and don't really remember using a lock washer??? Try flipping the pulley over ??
They went right on, nothing seems to stand out for problems...