I need to look up the same info, so thanks for posting it.
Something my dad taught me that has made a lot of sense since then is that it is harder to get a nut off than to put it on. Don't believe that? It has to do with 'starting friction'. It takes a larger amount of force to get something moving than to keep it moving because of 'starting friction'. This means, just to throw some numbers at it, if you are applying 50 ft lb when you turn the nut around and stop, it will probably take 55 to get it started again.
If you put all you have into tightening a nut, you will be in trouble when it is time to take it off.
Another thing, look at the letter stamped on the end of the stud before you start cranking. I know, I know, "Left is always left and right is always right." My M37 in the Army had had the brake drums switched diagonally (they are interchangable front-to-back) so that I had right hand lugs on both sides of the back and left on both sides of the front.
Also, someone might have replaced a stud with the wrong one.
Arlyn
PS ' Just read the post: "400 to 450" !!?? No wonder the tire busters in the motor pool were always big guys!!