with 800lb tongue weight you do need to use a WD hitch, that's about all. the factory hitch limit for weight carrying is less than 800lbs IIRC. I tow a 9,000lb trailer with a 1400lb tongue weight with our 3/4ton duramax and the bed loaded with stuff and passsengers and we are still under GVWR (barely), and well under the GCVWR and towing limit of the duramax.
Not necessarily true. My factory hitch rating on my GMC 3/4 ton is 1,000 lbs. weight carrying and 1500 lbs. weight distributing. So as far as the hitch itself is concerned, it is rated to carry the load.
Weight distribution may be needed or desired in order to transfer some weight back to the front for handling purposes. As for being overloaded with the stated combination the answer is no you are not. That is assuming you are not loading the bed of the truck with an excessive amount of weight.
the 2011 duramax hitch says 1500 WHD ,14,OOO TW,MY PROBLEM I MY SNAP UP BRAKETS BENDINGNG ON ME ,HAVE BEEN LOOKING AT THE EQUAL I ZER.10,000 WITH THE 100 LB BARRS
the most common reason for snap up bracket bending is that there is interference between the bars and the trailer frame often during turns, putting very high side loads on the snap up bracket. What type (round bar or trunnion), what kind of sway control if any, and brand of hitch are you using now??
2011 Keystone Outback 295RE
2004 14' bikehauler with full living quarters
2004.5 Silverado 4x4 CC/SB Duramax/Allison