Dave
yes mate that true they just sheard off with out any warning
they are rallydesign longer studs , but i all honesty i don't think the studs are to blame , i use these spacers without any
PCD fittment (universal spacers) because the wheel is resting on the studs and not on the hub and the jerking of the car acellerating i think the move about causing the wheel to move slightly
i was totaly shocked when it happend
but the car didn't feel too bad when it happend because i have the 330mmx32 discs on the back and so is that was basically a wheel

I think the lsd helped aswell i might be wrong tho
marco