Rebuilding a Warwick 3.5 x 18" (Also known as Grayson, Granville, Randa) Help Wanted

[scott88]

Comparing mine to the Myford, it seems like mine doesn't have the brass nut. It seems like the screw id threaded directly into the slide (the circled part of the picture)



I've found this part on the Myford site, do you like it would fit, if not I'm sure it could be adapted.
https://www.myford.co.uk/acatalog/ML7-1545454455.html

Does anyone have a chart for the gearing? Maybe that too is the same as a Myford, I'll google it.