I am in need of steps for my 1966 k-10 long bed. I ordered a pair form a company(DYNACORN INTERNATIONAL) and they showed up with a sticker that said 1955-1959 and don't fit. I've looked around and can't find them. Can any one help? I saw them in Classic Parts catalog but same number as the ones I bought and are not listed on line.

Thanks for all your help, Al