Does anyone know where to get the chrome front bumper and valance for a Colorado other than thru the dealership. Dealerships have the upperhand on new cars and trucks.

Sure they do. It is their product. No one else makes them. It is the same with computer printers. You get the printer for $89, and the ink refills (a $10 value) cost $69 each. That's how they make money, by making the ink cartridges proprietary.