Jim, dude, have you ever overtightened a pinion nut and smoked an axle?
I've certainly seen what happen when the under-qualified do jobs they should have let a pro do.

If it comes to being on the roads and highways with DIY's running questionably repaired rigs or rigs having been repaired properly/professionaly...If you feel there is a contest here... chime in. Otherwise read what is in front of you, this particular fellow clearly has no clue as to what to even call the part that is bad, much less install it correctly.

There are MANY qualified DIYers out there, I'm happy for them, that is how I got started in this industy.
Even today, I won't work on my diesel engine myself, because I'm underqualified to do it. I change the oil and use only oe parts.

SD