I just received my order. However, the rollers do not fit as they are not the same as my existing rollers. As you will see in the enclosed photo's, I have a plastic spacer that goes between the roller and the door with two mounting screws and a center adjusting screw that screws into a threaded hole in the roller. Looking at your catalog again, I found your 84-074B that may work, if the top center spacer can be removed leaving just the threaded hole. Please advise.
Thank you
Edward