my dad has a mitsu cab over, with a 12ft dump body, 7 or 8 ft wide with 4 ft high sides on it, it can legally carry the same weight as an f450 dump, it can tow the same, its really not bad on fuel either his is 2wd, and it has an open differential probably to help with fuel economy, but it is very nice for chipping, junk removal, mulch jobs. i have had 15 yards of mulch in it at one time, dumped it with no issues, brakes handled it well, but the 6cylinder in line 6 diesel could have used more power. i rented it him a lot in the over the spring, and summer. he bought his with 12,000 miles so it was pretty much new still. only down side for me, is it is 2wd, i bit awkward to back a chipper into a driveway with because it is so big, but that size dump body was a life saver on so many jobs. I've filled it full of oak logs 2ft in diameter and it dumped it no issues. really is a work horse. i could imagine with a chip box it could hold closer to 18 yards of chips.