But if you look at the top of the "General truck talk" page you'll find..
Welcome to the forum for general pre-'73 truck-related topics. Before posting a new topic, please make sure your topic isn't better suited for one of the more specific topic forums -- thanks! Please, no flaming, advertising or anything else not directly related to the care, restoration, preservation or use of old GM trucks! Off-Topic discussions go in the Greasy Spoon Forum!
(Bold added by me.)
So that Ford, Mopar, Deere, etc. goes over there and there's a Hi-PO forum for the 350s and 425 Caddys.