Just bought a new 06' Silverado 4x4 with the aluminum 5.3 liter to replace my 99' K1500 5.7 liter. I really like the truck so far, it actually gets a little better mileage than my old truck. I only have a few hundred miles on it and just made my first expressway ride with it, I noticed that the steering wheel shimmies and the brake pedal pulsates if I hit the brakes pretty good at 75 mph or so. My guess is that the rotors may be warped. Is this by any chance a common issue with the 06' models?
Thanks, Brian