Working on a 9N (178905) The king pins are 11 inches long. I purchased a thrust bearing S.65986 (CONN3123B) and it is too thick. There is no key cut in the king pin either. it uses a wedge bolt to secure the steering arm. The axle pin has no flange and uses P/N 9N3126A with axle pin retainer bolt # 350635-57. I need a thinner thrust bearing for this axle and cant seem to find one? The thrust bearing I purchased is a ball brg and the one I am replacing is a tapered roller brg. Thanks for your help.