Sorry I didn't really finish my thought earlier. I don't like typing much on my phone anymore.
Anyway, somewhere along the line, they switched the power steering pump and I suppose that the "surge" at full lock will blow a seal on it.
Mines an '07 and I don't go full lock because, well, I never need to and my tires are heavy... roughly twice the weight of the factory tires. That ain't easy!
-rockstate