Tire/wheel size for dart convertible

I have searched history as far as my abilities can go. I'm not finding my answers, so I want to start a new thread.

I'm about to start a 67 convertible to 70 swinger convertible conversion. I want the largest tire/wheel combo that will fit. I want all 4 wheels to be the same because I want the option to rotate the tires and carry one spare. I'm not concerned what the tire size is because I am most likely eliminating the spare tire well. I'm not sure that I can fold or trim the wheel lips because I want wheel opening moldings.


Is it true that the rear end can fit a larger tire/wheel than the front so the front tire size will dictate the rear size?

Many are upgrading the front suspension to 1973+, but that suspension has a wider track. How does this affect tire/wheel size?

The 1970 sway bar is attached closer to the wheel (outside of the strut rod) compared to the 73+ suspension (inside of the strut). Will this affect tire/wheel size?

Will an aftermarket coil over K-frame suspension (no strut rods) affect tire/wheel size?

What is the track width of the aftermarket K-frame suspensions (torsion bar or coil over)? Are they using the 70/71 track width or the 73+?

I read that the 1972 fenders have larger openings and should reduce the risk of rubbing? Does it allow bigger tires than the 70/71 fenders? Is it worth the work to graft on the 70/71 marker lights?

I really like the 1970 style rally wheels. I was thinking about 15-inch wheels with a 50 or 60 series tire.

I'm at the stage where I want to map out all the elements of the build before I start wrenching.

Thanks