The column doesn't separate from the box. Actually, they're not too bad to overhaul, but there are a couple of special tools needed to get it apart. Namely, a spanner whrench to get the end plug out. I got mine from Snap-On, wasn't too expensive. I ended up making my won gaskets, suing a sheet of gasket material and the old ones as a pattern. The seal was simply micd and matched at the flaps. I think we went with one that was actuallya few thou smaller id so it would fit tighter to the shaft.
If you tackle overhauling it yourself, either get a shop manual or print off the pages from
Keith Hardys site to assist you.
