Click Here for ram bodybuilders website for 2012.
click on your truck (2500/3500) than under technical information you will see camper guide. click on it and it should open
This PageNow you get to read the famous "not recommend on trucks with snow plow package" line :) The snow plow package includes a bigger alternate and a skid plate for the transfer case, I assume they don't want you snow plowing with camper on.
further down on this link, look up your truck in the tables.
Now I am guessing you have a 4wd? I think I read short bed? and I think I read 10100 GVWR? Probably diesel?
According to Ram, you are rated to carry a 1793 lb camper.
also in this web page you can find your
weight numbersit matches what I think you said about 6200lbs GAWR on rear.
it also shows max payload of 2750 lbs (that includs you wife and dog) with a Baseweight of 7335 lbs, base wt rear of 2808.
if your tires are rated at 3200 lbs each x 2 tires = 6400 lbs max rear weight supported by tires. subtract 2800 lbs empty load and you come up with 3600 lbs max load in bed.
(that 2800 lbs ounds low and I bet that does not include full tank of fuel, you really need to weigh truck with you/wife/dog/stuff and full tank of fuel to know what this "empty" number is.
now if you keep the rear axle load under the max tire load number you will probably be OK.
Remember that 3600 lbs includes loaded camper AND tong weight AND about 1/2 the weight of people/stuff/dog in cab, you will be below your tire ratings. To me when looking at all these numbers, its the tire ratings number I will not exceed.
I had 2006 3500 SRW 2wd with diesel and my Wolf Creek 840 was under the tire numbers pretty much loaded, but as soon as I hooked up a trailer I started to exceed those tire ratings.