Depends on the wheels/tires you are running. On my BTS with factory wheels/tires, 1" rear 3/4" front put the sidewalls flush with the flares. Now that I have 35x12.50s the sidewalls stick out about an inch. The edge of the tread is about even with flares1.25 spacers will put the factory wheels right at the edge of the factory fender flares? If you can, please post up a few pictures if you got the 1.25 spacers.