look under my profile and view my posts you will find what i have done. i dont think you want the spacers or to add that much tire though. just my thoughts after having done this and riding it,. i am waiting on an answer on whether the ranchedr hubs will work on both the front and rear so i can get rid of the spacers and i want to go to a sport tire as well. the steering with the mud tires is terrible. it slides in sand, it slides on hard dirt, loose dirt. the sidewalls are too much, theres no give. tears the hell out of grass though. sticking out this wide you dont follow atv trails either, you are riding on the edge and hitting what is sticking out. i like having the twelve inch wheels, but i will get it figured out how to have them without spacers, the only sport tires i am finding are ambush tires and they are only a four ply. might look at kenda and see what they have to fit. right now i am running 23s all the way and they only hit the heel guard if you are really crooked going uphill or down.