No. They are not replacing both rears. For about a week and a half, I was under the impression that they were, but I just spoke to them today and they will not replace the left rear. He seemed frustrated that I kept "checking in", and he offered to take the wheels back and refund the money. It is not what I want at all, but it seems like that is what it has come to. Now I have to pay to have the wheels dismounted and all this time has been wasted. It's unfortunate.