The GVWR on my 2500HD is 9200lbs. The RAWR is about 6050lbs and the FAWR is about 5200lbs. The axle ratings are based on the tires and the pressure that they run at. Added up, that gives you a total weight using AWR's of 11250lbs. There doesn't seem to be any rhyme nor reason for the difference between the GVWR and the combined axle weights. It may have to do with the spring sizing on the truck. The key is that I'm not to load my truck to greater than 9200lbs which I try very hard to maintain. It's very difficult to do, when the DW wants to bring back a rock from all the places we've been, to put her garden. :W