I have to agree with KBMOG.
I cannot believe that a company with such a long pedigree as Quaife got it wrong.
Bevel gears have been around for centuries. The Romans and the Greeks used them.
Is it a case of `they won`t sell many so we won`t bother`, or did they really get it wrong?
At the end of the day, a bevel box is two thirds of a differential, and they don`t squeak.