Thought the inside bump IHC truck wheels were supposed to work with early Ford caps; but didn't have much luck getting original '41 caps to fit. Could have sworn a cap fit while I was fooling around with trim rings; but not now. Kinda got carried away sanding the wheel bumps and lip on the cap and managed get one on; but shouldn't be that hard. Maybe repop caps are "looser", maybe try one tomorrow. Anyone had any experience with this?