Originally Posted by lee

I'm not sure where I read it, but I seem to think Subaru cautioned about tires more than 1/4" in circumference could have an impact (2/32" tread depth difference results in a little less than 1/2" diff in circumference - if I punched the buttons correctly). If you have to do it, then I'd put it on the right front (at least that's the tire that wears fastest for me). Then maybe run a pound or two less air pressure.

Handling sure wouldn't be optimized, but I think (note emphasis) it would be OK as far as not causing mechanical damage - mostly as the front diff is open - or at least that's how I reasoned it out to myself.