Hi all. I have a 77d that was original with spoke wheels. I have purchased mags for the build and the rear is a 16" with a disc brake. I also purchased the swing arm from here. When I went to install the rear mag I am missing the spacers from the right side of the wheel. The side with the caliper mounting bracket. Does anyone here know what I am missing? If I could at least find a pic what it is I could try and make it. Or if anyone had it for sale I would be willing to purchase this asap. All the help is appreciated.