What's the name of my tranny builder shop.

Wrong tire ratios, etc will do WONKY things on the 4x4. Just because a tire fits, doesn't mean it's right. So did Discount Tire ship you the wrong tires or the shop ordered the wrong aspect ratio. Whomever installed the tires would have known it was the wrong size IF the wrong tires were shipped..

I've had plenty of different sized wheels ....on the X. It all boils down to keeping the correct tire ratio. I HAD a HARD ON for some Michelin Super Sports. Played around with different sizes they had in their lineup, but nixed the idea as I did not find a correct working ratio.