Sorry drivesitfar, when I posted I did not see your reply. Its funny, you mention that thread. As I search for info, the GJ, seems to be the most common result on google. I did find this. In this post from "the vises of garage journal" post 3689, a member describes this vise to a T, and even the same problem I have.
Dave
"Gary Indiana, (kind of makes ya wonder if it's a name, or location...) I have a question about your unlabelled Wilton 645... I have been lurking around for a couple of weeks, hoping to identify my recent acquisition - a Wilton unnumbered 5" vise. Mine has no "645" cast into the body, but mine does have "Wilton" cast into one side in big bold letters. It also has EXACTLY the same casting numbers as yours stamped into the three major castings, 111101, 111102, and 111103. Where yours says Made in USA, mine has three lines of text cast into the body, "Jaw Width 5", "Jaw Opening 6 1/2", and "Made in USA".
My dilemna is this. I have removed the lead screw and dynamic jaw but I cannot remove the lead screw nut from the dovetail because of the pin that comes up from the base plate. With other vises, that pin must be hammer driven up and out from below. Installed, it usually will protrude through the main base body, securing the lead nut in its dovetail by blocking any forces trying to drive the lead nut rearward. But in the case of my 645, the pin comes through under the lead nut, and as such it cannot be driven through from underneath because the lead nut is blocking its egress. How is your pin positioned in relation to the lead nut?
I also think that someone may have reversed the lead nut in the dovetail on my vise. One face of the nut casting is flush between the end of the threaded portion and the end of the dovetail part of the nut casting. The other end of the nut casting is offset, with the male dovetail longer than the threaded portion. It would make more sense if the offset end of the nut were positioned toward the rear of the vise so as to maximize engagement of the lead screw when the dynamic jaw is fully extended. On mine, the offset end of the nut is facing the front of the vise, and the flush end is situated to the rear. Could you look at yours and let me know the orientation of the lead nut? Thanks in advance.
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