I made a thread a few months back asking about the pros and cons of these trucks. I am now finally in the position to buy one. I am looking to buy a 2003+ Silverado or Sierra. The truck will be my daily driver, and occasionally haul my Talon to the track. I MUST have an extended cab, 5.3, auto, and short bed. My main question is: What makes the Z71 Package so much better over the regular 4x4 model? I have had 2 people tell me to get the Z71 over a regular model. When I ask why, they simply reply with "they are better". What makes them better? Is it worth turning down a nice deal on a base 4x4 in favor of a Z71 that may or may not cost more?
Also, are there common places for rust to form other than the cab corners? I want to find a rust-free one.
Thanks for the advice in advance.