Hi Law, you will want to pick up a Ford Shop manual for '63. You can find them on e-bay for $20 ish. Most of your codes will be explained in the front....my '66 manual doesn't have the letters I need (no "S" engine for example--I am guessing that goes to a 144 cu in engine. Also, I show axle code 02 as the small 7 1/4" rear end 4 to 1 ratio). You may have something unique there, that multiple digit DSO code is related to the order that was received from the US Air Force, probably. It could have some unique combinations.

If you do not get someone coming on shortly, I found another forum over on Yahoo called 'econosrus' and there are some really dedicated econo chaps there.

John