I've got 285/75R16 on mine, and like others have said, I too had to trim the front bumper just a bit. You dont even notice it. I did not need any wheel spacers, but I put some on for the added stability on sand dunes. I take Ol' Blue Thunder in the air almost every weekend and have had no problems. I used a 1 1/2 inch spacer which gave me 3 more inches to my wheel base, not counting the wider tires that are on now. Plus it gives it an aggressive look. I also am using stock rims. When using stock rims with mud tires they made the truck look like it was on stilts. I have not yet experienced any abnormal wear on any of my suspension parts, and like I said, I put it through some abuse.