I bought my Tahoe in Aug. and noticed that it pulls hard to the right ONLY on the freeway. It seems OK just running around town. I took it to NAPA, and got the runaround, I dont think they aligned it correctly. Long story short, it still pulls on the freeway. Anyone else had that problem? This could be a stupid question, I dont know much about this stuff, and my husband is not alot of help. Thanks!