Not sure if '49 was still the KB Series or the L Series. It should say on the ID plate, or perhaps even on the chrome trim on the side of the hood.
Once you figure out what you have, go to oldihc.org and check out their "truck talk" forum. You should be able to get the answers you seek.
Good luck!


Rich
1947 Loadmaster
1947 Chev. Loadmaster
1959 Chev. Viking 40

Life is short--eat dessert first!