[iamrcox]

There is a bearing on the axle that could be your problem. Remove wheel and you will see the end of the axle with a nut that holds hub on. The nut has a cotter key through it to hold nut in place. Remove the cotter key, remove the nut, and the hub will slide off of axle. The bearing is in axle housing, and is held in with a snap ring. Use snap ring pliers to remove ring, and the whole axle with bearing will slide out. Check bearing for smoothness while spinning it. If it is rough or makes any noise, replace it.