What are the widest tires that will fit within the wheel wells on the back of my 68 Parisienne? What should the back spacing be for the wheels?

P275/60R-15 on 15x7 Corvette rally wheels 4 1/2 back spacing

Thanks.

**  What are the widest tires that will fit within the wheel wells on the back of my 68 Parisienne? What should the back spacing be for the wheels?

 

hd78glide wrote

          Yes 15" rims, I have yet to figure out the width and back spacing on them.

    **   Were you asking about what would fit?   or were you asking what size you already have?