I never used to torque these to spec, so recently I thought that I would do it properly. At 40 in lbs I swear that if a fly landed on your castle nut it would loosen. I know that you are suppose to properly stake it but even still 40 in lbs equates to less than a piece of masking tape's holding power. I know that for this part assembly that it doesn't need a lot but there is no way I could bring myself to go with 40 in lbs. So, I reverted back to the way that I have always done it.