Does anyone know what was included in the towing package for an F350 6sp? I'm guessing it would be slightly different than what would have come on an automatic with the towing package.

 

Every truck since 2002 had the towing package, so it's really hard to say what is part of the towing package. Before that about all it included was the fuses and relays for the trailer wiring, plus the trailer wiring. Those were the same for either transmission.