The problem with rear tire wear is no longer an issue..?? It appears that poor skills in alignment maybe the problem. Locating a tech that has the knowledge of the specs and the correct equiptment would be the first objective. I know the eqiptment is out there. In 1975, AAA installed a pit Bear that required dropping the wheels onto rollers. The diagnostic center made no adjustments, just recorded the alignment specs.
Over three decades have past, many new ideas, camber and toe will continue to be two main factors in tire wear. I do hope that members that are having problems with alignment can resolve them.

 

My '08 LTZ really scrubbed-off tread on the inside rears. Bought it as a CPO.

Got the rear spindle-rod holes ground out to permit correct rear-camber alignment. Spec's were way off! With a couple of TSB's in-hand, the CPO-selling dealer/Chevy let me order 2 new Michelin Pilot-Sport Plus tires too!
The tires alone retailed for ~ $525/pr.

Faron

 

2 new Michelin Pilot-Sport Plus tires too!
The tires alone retailed for ~ $525/pr. {Faron79}

You did well ! Hope this fix resolves the problem. The Michelin's will give you great service with the correct specs. My '08 Impala has had the 'fix' and no signs of wear on my Firestones.

 

Hello was wondering if u had figured out what the problem was with your impala? I have a 2004 and I can’t keep tires on it to save my life! Please help!!

 

post a pic of the tires showing the wear pattern. post a pic of the alignment printout so i can see what they adjusted and what the rear camber and toe is set at.

 

my stearing wheel is to the left car pulls to right

 

my stearing wheel is tilted to the left car pulls to right going to get my money back

 

the f ront camber is is spec but it can't have a cross caster (side to side difference) that large. its will pull to the side of least caster ie yours shows pull right. ideally the cross caster should be with 0.5 degrees....side to side.
A cradle shift to the right would correct everything upfront. Don't go back there unless they get someone who knows what they are doing. This guy was lazy or d umb.....they didn't even do a caster sweep. caster can cause a pull also...it needs to be measured. they don't know what they are doing. they should have measured caster,done a cradle shift and the steering should be centered when done.

the rear...any camber more that 2degrees will wear tires. you need either a eccentric bolt correction kit or new rear q uick struts. camber goes negative with spring sagg.