2013 3500 HD SRW vs Dually fifth wheel capacity

[markm]

Looking to talk with 2012-2013 Duramax 3500 HD SRW SB 4x4 Crew Cab truck owners. I am trying to determine if the the SRW has enough fifth wheel hitch wt capacity for a prospective fiver.
I have the information for my 02 Duramax 2500 HD 4x4 SB Ext Cab for two passengers, full fuel and fifth wheel hitch: 7040lbs with GVWR of 9200lbs. 9200-7040=2160lbs fifth wheel tongue wt capacity.
I am looking for similar numbers to compare the 3500 HD SRW and Dually fifth wheel hitch capacities.
Thanks

[DmaxMaverick]

The weight of the late model 3500 SRW will be heavier, by about 300 lbs. That cuts into the increase of the GVWR. The GVWR for the 3500 SRW is 9,900 lbs. RV declared weights are relative, and rarely close to accurate. For example, generators are not included in the weight declaration. Also, loading is not considered, and this plays a BIG part, especially with a toy hauler.

The reality is, if you're concerned about the weight of a late model RV, it's probably too much. If it has more than 2 axles, in almost every case, it's legally overweight for anything less than a medium duty truck. Most are overweight for a 4500/450 rated truck. A lot of people do it, but it doesn't mean it's legal.

[cabletech]

The GVWR of 2500HD & 3500 trucks was increased in 2011. My 2500HD has a GVWR of 10000 lbs. The 3500 SRW is higher, but I don't know the number.

Jay