I just tore into mine to freshen the grease up after the winter runs i did with it. I found that my kingpin seals were worn/torn, pinion seal was wasted and my nut had backed out. And all my bearings needed a good cleaning. Just inspect everything as your taking it off and cleaning it. Since you taking it almost all the way down i would suggest to at least inspect your kinpin bearing, busshing and seals. Might as well do it all at once instead of doing it twice.