The stock wheels on a 1951 were 16" (actual 17 1/2" OD) with 6 lugs and 6 hubcap clips. The wheels measure 5" wide outside edge to outside edge and 4" wide tire bead to tire bead. Pay attention to rust that may have seriously eroded the inside rivet heads and lug nut holes so badly worn the lug nuts almost go though them. Take a tape measure and a lug nut with you when you shop for rims. Think about the bead width of the tires you want to use with the 4" bead width rims.
