If anyone can help me with finding the legal GCVW for a 1992 ford F350 7.3L Crew Cab Dually long bed, I would be gratefull. I am trying to determine the maximum trailer / cargo weight to guide me in purchasing a new cargo trailer. I understand how to figure all the GVWR, GAWR, and allowable tongue weights, but can't seem to find the Gross Combined Vehicle Weight for this truck.

 

The 1991 Ford towing guide shows 17,000lbs. I don't have a 92 or 93 guide. The 94 guide shows the same for the IDI 7.3 turbo.