Jack it up wheel off the ground like, grab top and bottom of suspected wheel and wiggle, if it moves top to bottom its wheel bearings.
Grab front of wheel and back of wheel (in relation to the truck) and wiggle, if it moves you need a tie rod (inner or outer I can't tell from the computer).
Originally Posted by StxDangerRanger
Bearings usually don't grind. Could be ball joint or brakes.
If bearings don't grind then please... tell me what they do?