Brake parts in Ontario,Canada

I ordered a set of drums with the 5 x 4 bolt pattern, 10" for my dart from www.nationalmoparts.com and they're located in Ontario. Had no problems whatsoever from them, and they were the only company I could find that actually had or made 10" drums with the small bolt pattern. Neither NAPA, Lordco, or even my Chrysler dealership (even looking in 60's and 70's passenger car books) could find anything that said those drums even existed. Those were frustrating times for sure.