5" x 15" front, 6" x 15" rear steelies on the 31. (Set of 6" x 14" front, 8 1/2" x 15" slot mags to swap to.) 5 1/2" x 14" front, 10" x 15" rear slot mags on the 32. (A pair of 4 1/2" x 15's slot mags waiting in the wings.)
Henrietta has plain 15 x 6 steel Chevy wheels 205/75x15 on front and 215/70x15 on rear. Caps are '36 Ford (like the '36 caps better than the '38 Standard and pickup caps). Simply a matter of bolting some cheap dog dish caps that fit the Chevy wheels onto the back side of the Ford caps.