[Andyp]

i have not had this problem but have noticed them being bent slightly witch i guess will weaken and snap so i have changed them , as mentioned in another post if you put some shims on the drive shaft inbetween the hub and the gold cone type washer so as it pushes the washer tight ish to the drive pin it will mean the wheel when tightened will push against the gold washer instead of putting stress on the pin . i have never had a problem since!!