[andyg]

I like to see al of the tires on any given axle match. Different tires will pull differently and sometimes work against each other causing heating and excessive wear problems. You also want all the the tires on an axle to have the same amount of wear. Since the tires are mixmatched you should also check the DOT number on each one to determine their age. Radials do funny things after they get to be 5-6 years old even if they look to be in good shape. Watch the age of tires bought new at a dealer as well. They may be slipping you some old tires. be especially wary of "Good deals" as they may have been sitting in a warehouse for years. NOS is not a good thing with radial tires.