City Boys of Alachua

I purchased purchased these tires in July of 2013 they have nine thousand miles on them and two of them are wore out on the outside edge I have had four places check the car place where I purchase them said front bushings were worn out, Firestone said the alignment on back passage side was out and that is the worst tire tires plus check it all but said every thing is good Alignment wasn't off enough to wear out tires like they are & if it was it should have worn all 4 the same after doing a Alignment I took it to Firestone hoping they would help but Will say if the 2 bad tires were on the front they would have said something was wrong with the front plus the tires were 2010 a little I think bottom line Firestone suck & and city boys should have replaced my tires I only pay $ 450.00 for all if that put them out of business they should be