Did you put the lug nuts on without any lubricant. The book I read says put them on dry without lub.
Did you ever accidently tighten the lug nuts to tight and stretch the threads this could happen when using an impact gun
i did it on a yamaha quad to lazy to look up the torqe and set it at 100 ft lbs
it should have only been 45 foot pounds. Had a wheel fall off the quad as the nuts all came loose. I had stretched the threads and needed all new studs and lug nuts.
You might have to replace the studs and nuts not hard to do if you are handy.
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