I am converting a 1965 chevy C10 to front disc brakes. I bought a kit from truck and car shop.com I used stock ball joints. when I bolted down the front spindles the nuts went past the cotter pins and are not real tight. Do I need to change ball joints from stock to 67 and newer? Can i make the space with a # 8 washer? Ideas. Also any tricks when it comes to bolting up the new booster and master?