So, I'm about to roll 11 thousand miles, and while I haven't performed my second tire rotation yet (I'm going to in the next couple days), and both times, the outer edge of my front tires have been destroyed.

Now, this seems like a camber issue, but the dealership supposedly fixed this on my first rotation. I don't take corners too ridiculously (I would describe my driving as moderately aggressive), but most of my driving is in the city. My tires (at last check) were at 34psi.

I'm wondering if it's the tires A: crappy UTQG rating of 360 under 5500lbs of truck B: the side walls are too weak to hold up against 5500lbs in a turn, and so the outer corners shoulders the weight in a turn or C: there's something seriously wrong with my steering.

What are everyone's results with any of the stock tires (684s/Michelins/Alenzas)?

Mostly I don't want to buy new tires only to have this keep happening.

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2007 Toyota Tundra 4x4 DC SR5 5.7

When I did my lift, I noticed the outer edges of the front tires were getting worn faster than the regular tire. Later found out that the truck comes with some camber from the factory so that it will level out after the springs settle a bit. I would think they have settled in 10K miles, but you never know.

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2007 SR5 Crewmax 5.7L 4x4
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I guess I'll just have them remove any camber, and maybe even have some negative camber...