cheers, by the way ,theres a company that makes the valves called budbeg,and there damm cheap compared with ford,ive done my research
and they do an exchange service.they do all your breaking requirements,

its cheaper to get your calipers swapped /exchanged than getting obselite seals,i got fords last seal kit in the uk.its still sitting in the garage as i needed 2,so i just sent my calipers away for newish ones,2 year waranty
and like new.

ill hafta re-bleed the brakes bfore mot time,the cars off the road now anyways.