From pickuptrucks.com:

....payload capacity has been raised (for the 3500 dual-rear-wheel regular cab 6.0-liter V-8) from 6,635 to 7,215 pounds...

Does this mean the GVWR has been increased ? Any increase payload for the SRW's ?

Anyone have any info on this ?

Moved to new vehicle information

It doesn't indicate that here. http://eogld.ecomm.gm.com/NASApp/domestic/proddesc.jsp?year=2012&regionID=1&divisionID=2&type=0&vehicleID=11653&section=specs&page=&butID=9

heymccall, Thank you for the link. Good info.

Buried in all the info, it does show :

TC30903
2WD Regular Cab Long Box

GVWR 13,400 (6078) lbs (kg) (RPO 9G4)

So I wonder if this is new for 2012 then to match what I read on pickuptruck.com?
Either, good for GM, they have great payload capability.

You can see the 2011 and 2010 specs on there, too...