Ford literature during the '60, and maybe even today, was always evolving. For example, an early '63 shop manual would not have information on a '63 1/2 fastback Galaxie. It is quite possible the trim code you have is for later production car and the information you researched was from an early manual. I have come across this with a '64 Falcon Sprint. The trim code for the June '64 car was not listed in my October '63 '64 shop manual. Hope this helps.

I have a 1963 Galaxie 500XL convertible and mine is a trim code "83" also --83 is the code for white vinyl interior for XL's only--very rare, especially in convertibles. Your car was built in Los Angeles (the "J" in your VIN# tells us that) and the DSO#74 (District special order) tells us it was ordered to go to the Seattle area--Mine has the exact same #'s in it's code, also built in LA and sent to Seattle. Your car is a 2 door hardtop in "Raven black" , 390 4 barrel, automatic and was built March 28 1963