Thread adapters
I don't remember which shift handle I ordered. I think I picked the one with the metric adapters, but which ever one I recieved it didn't fit.
At the time I placed the order I didn't know which adapter I needed, and once I had it I just wanted it on the truck... so I just drilled and tapped a bolt that fit the handle.
I think the handle hole is 16mm or 5/8 N. F. Both bolts fit. I can tell you now though, you don't want to tap a grade 8 bolt. It destroyed my craftsman tap. On hindsite I would have looked for a brass bolt to make my adapter out of.