72 Dart Swinger Wheels

A Co-worker told me about this website that has a Tire Size Calculator. This shows me that the current tires on the Dart (235/60R15) are too large and what I should have on is 205/70R14 to achieve the proper clearance. So I am going to replace all four tires and wheels.

http://www.1010tires.com/tiresizecalculator.asp

Allowable Tire Sizes 1972 Dart Operators Manual
D78-14
E70-14

Tire Size Calculator
195/75R14 (Approx Factory Tire) Section Width 7.67 in
235/60R15 (Currently on Dart) Section Width 9.25
205/70R14 (Replacement Tire) Section Width 8.07 -which meets the allowable size of E70-14 and provides proper clearance on a stock vehicle.