Hi everyone, first off I must say that this site has been extremely helpful since the first day I got my truck. Its a 2006 colorado ext 2wd. The truck has a 'Z71' sticker on both sides and a 'sport' badge on the tailgate. I know Z71 stands for off road package, however, the truck has two coil springs instead of shocks at the front. I thought all the Z71's would have front shocks installed. I am very confused now. Could someone be kind enough to explain to me what features came with Z71 or sport or both. Thanks in advance.