While you guys are on the subject of Kingpin assembly replacement, I have a couple of questions about the Kingpin Thrust Bearings. I have seen two types of Kingpin Thrust Bearings used in these rebuild kits, one looks to be an actual roller bearing and the other type is just a stack of thick brass washers. Which is the better design? My other question is around how well these Kingpin Thrust Bearings get greased by the two grease fittings that are located near the kingpin bushings? I've rebuilt two kingpin type systems in the past and I found that the bushings seemed fairly well greased, but the Kingpin Thrust Bearings were totally dry.
