> Okay, perhaps I'm being dense, but shouldn't *all* of your tires wear at
> the same rate?  You're rotating them, right?

That's what I was suggesting in my last post...

But... if something is way out of spec it could cause the tires to wear so
fast that it would happen before the next rotation...

... also front and rear tires tend to wear in different places... fronts on
the edges due to turns...

Bill