Yup. Fat old me on 2' of extension= 400+ ft/lbs.

And 2 more things-
grease (or anti- seize) the nut pressure surface and threads well,
and then do it again after a few months.

Just because.

"Really tight. Tighter than that."

yup.

t
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I have a car disease. There is no cure.
I'm not even managing the symptoms very well...