When I bought my evo, the front two tires had pretty bad camber wear, and the rears are in like new condition.

I only drove a short while with these before putting on my snow rims/tire setup on.

Now that I am about to put my summer set back on, the front two need replaced as they are almost showing threads. The rears still have a ton of tread left, but have a tiny bit of miles on them.

I have been told that if you have two different circumference you can put stress on your differential.

What do you reccomend that I do? Do I have to buy 4 new ones all the way around? Seems like a waste of 2 tires with prob 80+% tread left.

Tires are BF Goodrich G Force TA KDW 265/35/18.

Thanks!

 

You need to have the tires have the same tread.

Your options are to either replace all 4 tires or you can have your tire ship shave the 2 new tires down to the same tread as the 2 old tires.

 

Are the tires really only 20% worn, as measured with a proper instrument? You can buy a cheap set of calipers and use the depth gauge on the end.

Most tires have around 10/32 tread depth when new, so that means you're only about 2/32 off. I've seen 2/32 quoted as the mismatch limit spec, but never seen a proper citation for that. I'd be more concerned about the overall diameter of the new tires of the same model being slightly different due to mold changes over the years.

In theory the IX is more tolerant of mismatch than other AWD cars due to the fact that the clutch pack isn't (as far as I know) engaged during normal cruising. But you still don't want to have too big of a difference front to rear.

 

Matching Tires on Four-Wheel Drive and All-Wheel Drive Vehicles

Mixing Tires

 

Thanks neal good info