I decided to give the rusty parts of the suspension a quick tidy up. They're never going to look brand new unless I remove them and have them blasted or replaced and I can't see any wear that would warrant replacement just now, so I've gave them the wire brush and sandpaper treatment and a quick coat of paint to at least make them look less rusty. Its not ideal and when I have to replace anything I will do a proper job as this will let me keep the car on the road short term
