I checked the 2004 Chevy online towing guide and the 2004 Silverado 2500HD Crew Cab long bed 4x4 can tow up to 15,200-lbs if it has the 8.1L V8. The 6.0 V can tow 9700-lbs. You'll want to confirm the exact power train setup of this truck you are considering to ensure it will have the capacity you need.
A 5th wheel trailer's pin weight (which is similar to tongue weight on a bumper-pull trailer) should be in the range of 20 to 25% of the 5th wheel's gross weight (GTW). This amount of pin... view full answer...
The pin weight (same thing as tongue weight but for in-bed hitch) capacity for the Convert-A-Ball Cushioned 5th-Wheel-to-Gooseneck Adapter # CAB-C5GX1216 is 4,000 lbs, the total trailer weight capacity is 20,000 lbs and the weight of this adapter is 88 lbs. view full answer...