Ended up getting a 179 R-pod, weighs about 3800lb fully loaded. The 4runner tows it around just fine with the stock hitch, if you had sway bars you would probably not even notice it back there. You are not going to win any races going up hills but you can hit a good 45 - 50 without pushing it to much. I drop it down to 4th on the highway and have been getting about 12-13mpg. I had a Hayden tranny cooler installed just to be safe. Now i'm just trying to figure out if i should get the trans fluid flushed or drain and filled as i am at 73k miles.