[moe]

Unless you already have the wheels(24.5) if you are ready for a new set of tires I would go with 11R22.5's The expense of new wheels off sets the benifits of the 24.5's I have a friend who made that change(from low pro 22.5's) and he was quite happy with the improvement. I run 11R24.5's and I believe that is the best size for your money. They cost a little more but they last longer, for two reasons, more rubber means less heat and if you run heavy loads thats important and less revs per mile adds up. Another positive aspect is the difference in height, many times a flat bed ends up on construction sites where just a little bit higher can make a big difference and if you ever do any of your own work it helps to be able to get under the truck. If you always run light loads in a dry van then there really isn't much benifit to 24.5's...... by the way 11R.22.5's are about the same height as low-pro 24.5's. .... They are close enough to run side by side if need be, I have had to do this from time to time on my trailers in emergency situations.