I tore my front axle down for inspection before painting and needed to replace the lower kingpin bearings. I searched the site for crossed #'s and never found them so i figured I would post what I found during my search locally:
Lower Kingpin Bearing: M86643
Lower Kingpin Bearing Cup: M86610
Front Hub Oil Seal: SKF 28175
Front Pinion Seal: SKF 18891
Just FYI...