Geoff, Many enthusiasist web site will carry covers. Look for "Evolution" fabric, its is about the most weather proof material you can get. It is very bulky and can be a pain sometimes going off and on. A new material is called "Noah", its the same characteristics as the evolution cloth but with about half the bulk. I deal a lot with the site below and I checked and they do have a cover for your truck, a little pricey, but you get what you pay for. Good luck, Bob.