Just picked up from caravan service centre, was told I have been running with caravan brake on which I have not. But somehow the brakes without the lever has been on . Most strange as last journey of 80 miles I was showing 33mpg on dash. Anyway he replaced both shoes at a cost of £80, service £280. Every other thing apart from slight damp from the heater cowl area is ok . He showed me the brake lining which was down to about 2mm, drums ok. Just glad we had it done before April holiday.