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
Walk-in Van built up by Utilimaster
Engines
3.0L Turbo Diesel
Eighth VIN character 7
5.2L Turbo Diesel
Eighth VIN character 6
6.0L V8
Eighth VIN character B or C
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.