>I understand what you're saying, but when the vehicle is zipping down
>the road at 50 mph what keeps that nut from backing off and letting the
>whole package loosen up and fall apart?
You must properly tighten it just like any other bolt or
fastener. You may want to use Loctitie on the threads. If
you have any doubt as to your ability to do this, please
have a pro do the work or, at least, look over your shoulder
while you do it. My life may depend on the quality of your
brake repair.
Lugnut