You can buy them cheaper on ebay than the dealer, but be careful who you buy from as there are exact copies with part #s and all. Don't waste your time on the cheap aftermarket ones, unless you want to redo it.

68 Road Runner, 69 Belvedere, 71 Challenger Vert
340 barracuda, 01 Ram CTD, 95 Ram, 04 Ram, 85 Daytona turbo Z
66 GTO, 06 Magnum RT AWD. 07 Ram CTD, 07 Ram