Look at the sticker on the door frame. It will tell you the GVWR and the GCWR. The GVWR (Gross Vehicle Weight Rating) tells you the weight the truck will haul, think of pushing straight down on your truck. This rating is for you, passengers, fuel, tool boxes or anything else you might haul while towing. Don't forget to add the weight of the hitch mounted in the bed of the truck. Scale your truck and find what the weight is (the way you will tow). I don't know what your GVWR is, but will use as an example that it is 5,500lbs. You scale your truck with you, everything in it and a full tank of fuel and come up with 4,500lbs (another guess). This leaves you with 1,000lbs. if the weight of the hitch on the trailer is less than 1,ooolbs than you are within the GVWR.
The GCWR (Gross Combined Weight Rating) is the the combined weight of the truck and the trailer with load. Just for example lets say the GCWR on your truck is 11,000lbs. Lets say the empty weight of the trailer is 2,500lbs. You are going to haul a tractor with implements that weighs 5,000lbs. Now lets do some math, trailer 2500, load 5000, truck 4500 for a total of 12,000lbs. This is 1,000lbs heavier than the GCWR of 11,000lbs.
The truck would move this load but it will make it grunt. Another thing to consider is, do you have a brake controller in your truck? If not you could have a receipe for disaster. Sorry for the lengthy post, I hope this helps.