i have an 82 1/2 ton i wrapped around a telephone post a few years ago.my dads freiend painted it after i changed the panels,then i bought a new truck and kept it parked a while.the paint is peeling of the gavanized fenders pretty badly,i know i can take it all off but then what?someone told me vinegar makes the paint and primer stick better any truth to this?should i use any certain primer?i just want to do what i can before i send it to be painted because i really dont think theyll take the time to do it right.also what should i do to prep surface rust for painting.its on the hood it doesnt look bad,it may come off but i havent messed with it yet.thanks for any help.