I have a dually with 8K miles on it. Based on advise from other dually owners I was going to "not" rotate and just let them wear. All of the tires are wearing flat and about equally with 8K miles on the truck except for the front drivers side and it is wearing a little uneven on the outside tread. I run 65lbs in the fronts and 40lbs in the rears. What I was thinking about doing since I only have 8K miles on these tires is to put the spare on the drivers side front where the one tire is wearing a little unevenly and see if the spare wears better. If it does then I will not rotate and see if the good even wear continues. Anybody see any problem with my plan??? Thanks for your advice in advance.