Craig as soon as I saw the pic you posted ( I have the same winch ) I thought your next problem will be loosing the stupid non attached winch handle.
I ended up drilling and tapping the end of the winch shaft, loctited a 6mm stainless stud in the end of the spindle drilled out the end of handle 6.5 m, and the secured the handle to the spindle with a flat stainless washer and 6mm nylock nut. I filled the square drive end up with grease before fitting the handle to prevent the onset of corrosion that begins as soon as your expose / create any non galvanised metal ( ie: by drilling holes in your winch parts). I found the direct drive shaft useless (or more correctly never used) so was happy to fasten on the low geared one
Cheers Blood Knot