I cant find were it says how much wieght i can carry in the bed of my 04 1500 Qd cab has 5.7 Hemi i dont put that much 2 dirtbikes around 450lbs generater around 125lbs and the we tow a 15' travel traile single axle so thats around 1,500lbs i do have a tow package on the truck so the trailer is not be but on the bumper so should i be alright with around 600lbs in the bed of the truck and towing the trailer?

 

If you've got 3:55's in a 4x2 then it's 1450 lbs total weight NOT including cargo or pasengers. 3:92 in 4x2 is 1600 lbs. Driver weight is figured at 150lbs in those figurse which is pretty silly. Unless your like 5'4" you aint weighing 150. Should be a law against that chit. It's false advertisement in my eyes.
Ohh, that amount also doesn't include the weight of the hitch(~85lbs), bedliner(~40lbs)..etc. So you need to accomodate for every piece of lint that gets put inside the cab...lol

You my friend need a set of airbags. Best way to figure out your payload is to get your truck weighed when loaded and subtract that amount from the gvwr inside your door tag(6400 lbs)

 

So either way i should be ok only putting 600lbs in the bed and towing 2,000lbs