hate to ask 73 dart sport 15-16s?

Thank you for the image, very helpful. How would I determine if it was smb or lbp then the backspacing needed? Basically I am looking around at summits and haven't had much luck in figuring out what would fit.

Thanks again.

Does the car have disc brakes on the front. It should be a single piston caliper if it does so that would be large bolt pattern. If it has drums on the front it would be small bolt pattern.