There is nothing wrong with having a different size tire on front as the drivers. Smaller tires will cut your top speed some. If you actually haul something, 8.25 will haul a lot. Rock haulers used them here in the 60's because they were cheaper. It may look a little odd having 8.25 on the driver and 9.00 on the steer, but if you can live with that, there is nothing wrong with it.