I did with the Hoosier QTP tires I was running. They were 29 x 11.5 and they were about 1/4" away from the leaf springs. On turns they rubbed alot. I even had a guy tell me smoke was coming from the rear of my car on a highway ramp. Going straight was ok but I do alot of street driving so I had to change them as they rubbed to much. Right now I am using the Hoosier 30 x 9 radial slick and it has a good inch of room with no problems. Ron