if you having the arches done i would spend a bit more money and buy the ones off little bird on ebay

, very good quality and a spot on fit

.

to stop any more rot have the full arch removed and the rubber seal between the inner and outer arch completely

taken off

, this causes the rot in the first place.

if you just have sections of rusty arch cut out and replace with metal you are wasting your money as the seal still remains and the rust will come back 100% guaranteed.

gary