2011 tundra outside tire wearing on 2011 Toyota Tundra

my tundra has 23000 mil and had to replace my stock tires 14000 mils I was told to get a more of a square tire so I got 20" rim and now tires my alignment has never been a issue I put 9000 mils on the new tires and they are cupping and wearing on outside please help me

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1 answer 1 comment
check front end and alignment call the dealer with vin# to find out if it is still under warranty
it is under warranty and I have had my alignment checked about 5 times and no probs and the dealers in Idaho never wont to do anything