Front End Problem

:banghead: I HAVE 2001 DODGE TRUCK 5.2 WITH MANUAL TRANSMISSION . I JUST REBUILT THE FRONT END . I PUT NEW ROTORS ,BRAKE PADS , WHEEL HUBS IN THE FRONT END . I GOT DONE WITH STARTED TO DRIVE IT . AN I NOTICED AKIND OF WHINING/GRINDING NOISE COMING FROM THE FRONT DIFF. I WONDERING IF IT IS GOING BAD SINCE I AM RUNNING BIG TIRES ON MY STOCK TRUCK. I TOOK EVER THING BACK OFF AN TOOK OFF THE DIFF COVER AN DRAIN THE OIL OUT OF IT . I SEE NO TO SHAVING IN THE OIL PAN . I HAVE TURN THE WHEEL HUB FREE HANDED WITH THE DIFF COVER OFF AN ITS COMING FROM INSIDE THE DIFF . DOES NE ONE HAVE NE SUGGESTIONS. I THINK I MIGHT JUST GO AHEAD AN PUT NEW GEARS IN AN BE DONE WITH IT . I LIKE FEEDBACK PLEASE.