there is a reason most tire stores will not mix tires on your car. The worst case it will cost you another $300 to get 2 more tires, pretty cheap for the safety factor if you ask me. I just went through all this I had 2 excellent bias ply tires, and was trying to get 2 more bias ply, it turned out to be $200 more for radials of the proper size and look I was looking for (7.00-15) If you are going to go cheap on something, cheap out on wood for the bed or seat covers, not safety related items. All told I spent $750 on tires and will be set for the next 10 years probably. Sure wish I knew how to post pictures, but on 1-29-12, in general truck talk, I posted a picture of the tires (my wife helped me, she is sleeping now) under "update on 15" wheels and tires"
