You shouldn't have too much trouble sourcing what you need -- Help yourself to our free Classified Ads section -- the "Swap Meet" in the menu bar at the top of this page). Usually, it's the other way around -- little truck guys who are only finding Big Bolt front clips ...
You might also take a look at our Tech Tips (menu bar at the top of this page). There might be some info there you *might* find useful as it pertains to the bigger trucks.
Welcome aboard!