I just got a "bargain" 99LC,very clean,1 owner.After 500 miles of driving,only issue noticed is a noisy rattle from the drivers side rear wheel/brake disc area.Truck has new brake pads,or at least 90%...however if I go over a small bump or two something rattles in the rear wheel area.I checked the lugs,crawled under and checked the suspension elements,everything perfect,sounds like somebody left a bolt/lug inside a cavity and it rattles fenomenal,I can hear the sound if I tap the rear tire with my fist,sounds from inside,going over high speed bumps is dead quiet,small bumps or just kick the tire will start the sound for a moment,it gets 10 times stronger if I go over a chain of small pot holes...any ideas?