Worked out from the recall campaigns and bulletins that list both. It does not mean a part or a repair for one fits the other.
Trims
None on file. NHTSA's data has no trims for this model year.
Engines
4.9L Turbo Diesel
Eighth VIN character S
7.5L Turbo Diesel
Eighth VIN character E
Position 8 of a VIN names the engine on many vehicles: how to read a VIN. Safety equipment depends on the trim, so decode a VIN to see what one vehicle has.