More on bald rear tires

Go to a good tire store that has a 4 wheel alignment machine.

Have the tires removed and reversed on their rims, then switch the rims between right and left rear. Switching direction and swaping together means they'll still be rolling the same direction but the opposite side will wear. You'll get a second 12K.

If just the outside edges of the tires are worn, the cause could be toe or camber out of adjustment. Looking at how the tires are worn would tell whether it is toe or camber.

If Wal-Mart has a 4 wheel alignment machine, then they should be able to do the alignment. I have no experience dealing with Wal-Mart's technicians so I do not know whether they are likely to do a good job or not.

I prefer to have alignments done at the dealership or at a place that specializes in tire sales.

Going OVER bumps ought not throw the alignment out, slamming sideways into bumps will hose your alignment though. given your description, I'm inclined to think the dealer (alignment shop) screwed something up.

Yes, of course WalMart can do the alignment. Can they do a good job? That seems to be just as possible as the dealer doing a bad job.

WalMart sells tires too.

Both rear tires were out in the same manner. The "toe" (I think) was off by "2 inches". They are bald on the outer 2 inches of the tire. The rest of the tire (rear tire) is worn more than the front but not bald.

I took it to another tire place, and they fixed it. It drives much better now, rolls much easier. I think my mileage will go up, I'll let you know. Before it went from 36-37 to 32 with the new tires.

Those bastards at the dealer screwed it up, I'm pretty sure.

If the toe was off by 2 inches, then you were fortunate to get 10,000 miles out of the tires!