Dummy me , I bought new bedsides with no fender holes to match my fiberglass fenders with no holes . Have an old set of half ton bedsides and the top of the fender appears to be about 5 inches from the edge where the bedside angles out , but I have an old three quarter ton bed where that same dimension is about 4 inches . Also the fenders don't match up with the running boards and I don't know exactly where the boltholes should be there . Suggestions?