On the GT due to the staggered size and offset, and on 86 & 87 GT's due to the staggered sizes, if you don't have directional tires, you can simply swap sides with the wheels and tires but not front to rear. If they're directional tires, you must dismount to swap sides.
The Formulas had the same wheels as the 88GT, so the same applies to them. The Coupe had the same size tires, wheels, and offset, front and rear so you can rotate them in the standard rotation pattern as most other vehicles.