John101, I'm also searching for a truck. I've never gotten the * wildcard to work, so the earlier advice of 196* and chev* never worked for me, but here is my search:
(1963 | 1964 | 1965 | 1966 | 63 | 64 | 65 | 66) (chev | chevy | chevrolet) (pickup | pup | truck | shortbed | short | stepside | step)
That's about every combination of terms I can think of. It must find one term in each set of parentheses for an item to be listed. It works really well. I use crazedlist.org to search many cities in my state and neighboring states, and I'll put a price range of 0-4500, and I'll click the "has image box." After I hit the "search" button, I bookmark the results. Now I can just go to my bookmark and see all the most recent results when I want to look for a truck. I probably go and look every couple days or so for new trucks on the market.
Good luck.
Steve.