Proper technique- tighten inner nut to about ~20 FOOT/lbs (while rotating hub), then back off 1/2 turn, then retighten to ~20 INCH/lbs (while rotating, until there is very slight resistance to spinning, you don't want it to wobble at all, but also you don't want much resistance to spinning), outer (jam) nut torque to (I've read different specs) 130 to 150 FOOT/lbs. ***Use green locktite on the outer (jam) nut. Or use the Stage8 X-Lock for $100 per wheel***. Using over sized tires causes the issue with it backing off and coming apart while you are driving home from the mountain trail. It also helps to modify the lock washer by adding some weld to the washer tab, then reshaping so it fills the slot better. Failure to not set preload properly will also contribute to issues. And the spindle can get worn out and need replaced if you have constant issues with the lock nut coming loose. Fortunately broncograveyard has spindles for a reasonable price, other places want 4x as much.
I'm interested in a system to replace the OEM bend-a-washer spindle nut kit, but with this one there's nothing to keep the outer nut from rotating and coming loose. Even if you torque it down, it can come loose. At least the OEM style kit lets you bend the big washer outwards to lock the outer nut in place. Not sure I trust this one.
Well that was about the most useless video, no mention of torque specs or techniques to get it done reliably, convenient this is linked from a web site selling the stage8 x-lock which will compensate for such a terrible installation as shown in the video.
