Disc Brake Conversion Help
1...!!!MAN!!! since that is a special setup BY THEM I would go contact who you bought it from!!!!
You have a download link to their destructions?
2....Seems to me the spindle bolts have a shoulder to "line up" the holes nice and tight. I believe they also have special thin heads. I would find an OEM bolt I don't understand why htey are stripped. Those are some bigass bolts Were they overtightened?