I was hoping to get at least 39's under mine, but on the vx you need more suspension lift than 3". When trying to size up tires, the front bumper mount welded to frame is in way. I think I'm gonna run only 35's but at least 15" wide. Might have to cut out wheel wells and have new ones made, or just punch them in. If you cut your wheels in you'll notice how close those brackets are.