[Corts60]

Turns out she is pretty heavily optioned:

3:42 gears, HD brakes, 40 gal fuel tank, tilt wheel, cruise, a/c, rally wheels, towing package, HD radiator, auto-lock hubs (although they are manual now..?), power locks and windows....and then I found some weird ones:

39U supposedly is dk adriatic blue paint, but I see no indication that the truck was ever painted a different color.
60D is light driftwood for interior?
60I is medium cognac for interior color?

Those last three have to be wrong. Maybe the site I used to decode is for newer vehicles?

Any help with those last three codes is appreciated!