hey newbie, seems like you,ve done a lot of work to fix your problem,, what was the fix? seems like the same thing i have going on, i did replace left bearing hub, had some play, rotated tires,, even took my spare tire{ brand new , tire } and one at a time changed it with all 4 tires, truck does have original tires, 83,000 on them, but they are wearing perfect, no imperfections, checked all front end parts, had a mechanic look at it , he couldn't find anything,[ dont think he drove it though,,,so you think i should remove front drive shaft? did you fix your problem? thanks,,,,Vic