Hi Gary. I bought them on eBay for $586 delivered. That's a little cheaper that the price you were quoted. They are from Banner Chevrolet in New Orleans. Just go to EBay. Type in assist step 2015 Colorado and they will come up. Make sure you get the one for for the CC. You may even want to call them direct, ask for the parts department and ask for the guy who handles the EBay auctions. He's hard to get a hold of, but maybe he can cut you a even better deal directly, without eBay as a middleman. Worth a try. They are super easy to put on too. It helps to have two people but one can work in a pinch. Good luck and let me know how it goes. John