TPS = £140 the pair ..mmmmmmmm..
right so,
i re-fitted the old dust shields and they are a lot bigger than the old std discs...
so then i tried to fit the new 335mm discs as they are almost the same size as the dust shields...
but
the new discs catch but not much,so i hit the dust shield carefully with a sledge hammer all the way around to re-shape it and leave a gap behind the discs...
the 335mm discs now fit and so there is NO need to buy the bigger dust shields
Job done