2008 Impala rear wheel inner excessive wear - 2008 Chevrolet Impala

I had similar problem on my 2008 Impala but only on one rear tire. Turns out the strut was going bad. replaced all four struts and that fixed the problem.

Yes it was actualy very common for the 08 impalas.

2.5 degrees negative camber is not within spec. You need new control arms in the rear. These will set your camber back to the factory setting and reduce your tire wear on the inner edge. The first shop you went to is correct, the camber cannot be adjusted, components must be replaced to rectify the excessive camber. Ive done a couple of New Style C70 rear control arms for this very reason, if your vehicle is under warranty however, the dealer needs to be able to prove that the car needs it. So if you dont have wear on your tires and when the toe was set it readjusted the camber (when you adjust toe it affects camber and caster measurements) then they cant prove to Volvo that it needs the control arms. I hope this helps

suggest kick tire on one side or the other,changed millions of those,apply wd40 on hub after removal @ maybe not so hard next time, but 1st are you sure all lug nuts off?

need to bring it to a reputabile auto repair shop & have a 4 wheel alignment to prove if there is a problem then you can submit to gm for warranty

Best place to look is ball joints and tie rod ends.  

check your rear suspension very carefully, something may be bent. all adjustments should be able to be made otherwise GM would not publish alignment specs

does the car make noise from the rear when you go at a high speed. If it does it may be your bearings. I had my bearing wear out on me at 15000 miles.

ok have you checked that the tyre pressure is the same on all four wheels or it could be that the rear axel is not being lubricated properly check the bushing.