G'day Berger.Julian is on to it. Bin the tab washer & recesed washer. Use the thick plain washer & something like 262 loctite. If you are using a "pattern" shaft adapter, dry assemble the hub to it to make sure the hub splines are 1or 2 mm proud.If not , grind that amount off the adapter end. Had to do this recently to a "pattern" Trihard adapter.Easy
im having the same problem would loctite nut lock 242e medium strength be any good or should i go out and buy some thing stronger