Just finished jack #2. Jack#2 has only a touch of rust on the upper part of the acme rod. Not much of any residual lube though - it would come pretty close to passing a "white glove test." Interesting that the 2 jacks I've worked on are slightly different from each other and from the one in Keller's pictures. I would caution anyone attempting this operation to pay REAL CLOSE attention to how things come apart and in what order. You can't depend 100% on the pictures shown in this thread. Either HJ has multiple suppliers or each build lot is different. Wondering if jacks #3& #4 are going be different in some way.
-jj