Ah, much as I thought. My only prior experience is with the later 51-55 bodies, not the 47-50 bodies. i take it by useful Chrysler wheels, anything in the 15 x 5 size that were found on the Diplomats and similar rear wheel drive, possibly including Dodge vans? I already have that problem with the Studebakers, especially on the rear, where they have to be jacked higher than usual in order for the tires/wheels to clear. Fit perfectly without clearance issues front and rear once the tires and rims are on. I have an interesting and informative photo of the difference in sizes bias versus radials, on rims. 6.70 compared to 215, 205 and 195/75R15, all side by side in a row (80kb). Don't have photo hosting for the picture, but I could email it to someone who has. With a Special without overdrive, every little fraction of an inch in diameter counts as far as highway drivability.