So I have a MTH 6 axle diesel loco with a set of blind drivers on the inner axles. I want to put flanged drivers on those axles so that the trucks don't swing off the rails like they do now.
As a test, I put a flanged set on and the one problem I need to solve is that the holes for the axle are oval, and the axle moves up and the wheels detail through turnouts and whatnot. I'm thinking about crafting a half Moon shaped spacer with a spring to push down on the axle and keep the wheels on the rails.
Does anyone have any tips or know of a product that is out there that does this? I looked at NWSL and nothing jumped out at me.