1968 - Dart GT - Need Wheel & Tire Suggestion

If it came from the factory with steel wheels and dog dish type hubcaps and you like the look, you can get 15" steel wheels and caps.

On the other hand there are some cool looking hubcaps out there, might not have been an option on your car, but if you like it...

My car is also a one family car bought new and it has the original full size hub caps on the OE 14" wheels, a few more miles 318,000! But I get the time capsule aspect and keeping it stock is kind of an important thing for me.