[Cam]

I had the same problem. First, be sure to check that the hub is in correctly as there are a few different positions it will fit. Only one is correct. Second, You may need to just put on the thin washer amd bolt and then tighten down to seat the hub. Once you do that, take off the nut and add the inner ribbed washer and then the flat washer and finally the notched high ring that holds nut in place along with cotter pin.