On my 580 I tried to get the break housings off, but it seemed impossible with how the one bolt on the battery box side seemed to hit the frame not giving any clearance to take off the housing, but now I know it's possible. I had the same problem where that one bolt holding the housing on bottomed out. I don't know what that is about, but I think I will go with your method and use washers. Thanks for the content, if this video was not posted I would not be motivated to try and fix my breaks again. Keep it coming!
This is exactly why I put these out. I can't tell you how many times I search videos to see if someone else solved a problem for a particular piece of equipment. Glad it helped.