I have a 98 Tacoma that's lifted 3" with a OME kit. I went to Discount Tire a couple weeks ago and bought some BFGs in 33x10.50x15 ATs. I was told that I had a 10" wide wheel and this combo would work together. I drove about 100 miles and noticed that all 4 tires were crowning. I could see the center was much higher than the outer tread of the tire. I checked the tire pressure and it was 36psi. So I called them and they told me to bring it in, so I did. They told me that since all 4 of the tires were doing it that it was my truck and also my rims were to big that it is suppose to have 7 to 9" rims. They said inflating the tire to 50 lbs would make it ride more even and to wait 5000 miles before I would notice the change for the better. He also told me it was more likely something was wrong mechanically wrong with my truck. As I was driving home the really pissed me off telling me that its my truck. What a bunch of crap. Well I drove to another tire shop and asked them about all this crap I was just told. He looked at it showed me my rims were actually 8" instead of 10s like they told me. He couldn't figure out why they were wearing like that so he said to deflate the tire to 30 psi and see how it wears. Now I understand about alignments just I just had it done 2 weeks ago also I've got new axles and new rack and pinion steering. New brakes with new roters. So can someone tell me how this is mechanical a problem. Does anyone have any ideas?