Loose wheel bearing nut
Hi Phil, as for the left side nuts coming loose on the wheel bearing the forward rotation of the wheel will tend to loosen the nuts. On the right hand side the rotation would tighten the nuts. That was the reasoning behind the left hand thread wheel nuts on the left side of CMP vehicles.
As for the tang shearing off the washer I have had the same problems when tightening the outside nut. Over tightening the outside nut tends to turn the inside nut slightly and shears off the tang.
I have no idea on where to source the washer. Any medium duty trucks that I have worked on have a flat on the spindle for the washer and not a tang. I will keep a look out on some of the industrial stuff at work for a washer.
Paul
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