I am prepping to go out wheeling ina couple weeks. i decided to go thru the front end n put in new bearing, races, seals, etc. All went smooth..took some time when it came to putting the 8 bolts into spindle and thru the large brass w/ black rubbed seal all together but otherwise all looks good. Or so i thought. The entire knuckle n hub looks correct except that the rotor is sittin about 1/2" away from the backing where as it was just slightly covered by it when i started... any idea wut i may have done to cause it?