Appropriate Tire Size

74DartSwinger360 said
We have 225-60-14 on the front of our duster no prbs so whatever the equivalent is to that in a 15 inch tire will work

That would be a 225-55-15 (24.8" tall), your 225-60-14 is 24.7" tall, 1" shorter than the stock tire was.

The problem with a 225-55-15 is that it's an odd size, limiting tire choice and what tires you do find in that size will be hugely expensive.

And you will still have a tire that is short.