I got the box mounted this past week, it was a bit more work then I planned on, it was going to hit my top, I had to make a slight modification to the front of the box, remove spair tire Crain, rerought the exhaust and lower the air breather, but not that it's all said and done I'm extremely happy with it the truck still drives great and doesn't seem to bounce so much in the front end, I guess a little more weight behind the rear axles helped there . I think when she's all done it will be the baddest and probably the slowest rv thing any where we take her!!!