I took a trip with my new Jk recently and the tracking on highway was bad. Now, I'm not new to Jeeps but it seems new JK doesn't hold a lane like my '95 YK does. The dealership replaced the 225/75x16 with 255/75x17 when I bought it. I made sure he reflashed the computer but he maintains front wheel alignment was the same for both size tires and wheels. I know Jeeps don't track down the highway like a 4-dr. sedan, and that's one of the reasons I like 'em, but this one seems bad. Any input?