GVWR- 10100 for pickup; 10500 for C&C. My 93 W350, club cab, 5 spd, 4. 10, aluminum flatbed, weighed in at 6450 empty with 1/2 tank fuel, me out of it. Seems like GCVWR (Gross Combined... ) was either 17K or 17. 5K w/4. 10s and manual. So subtract 6500 from either figure you need and you have your payload/ tow rating.
Daniel