You need to have several catalogs from the different parts vendors as those catalogs will tell you what years the parts fit. I have a catalog from Rik's, Corvette Central, and Eckler's. Also when you have several catalogs you can compare prices as the prices aren't always the same. I have found Rik's carries the same exact parts as the others but their prices are always a few bucks cheaper because Rik's is operated by Rik and his wife only. So for the past two years Rik's has gotten all of my business. And Rik's will also ship via the post office which gets the parts to me in only three days versus 9-10 days when shipped U.P.S. or FedEx ground.