So you need to look at the chart for GCWR. This is how much your truck and trailer can weigh.
An easy no brainer approach is to take GCWR minus GVWR and will give you trailer GVWR.
This would also give some capacity room if you are new to towing as well.
So for ***** and giggles I will assume a 5'7 Bed and 3.21 gears...as this will give the lowest number.
And we will also assume a payload of 1700lbs.
When you get the correct numbers we will do this again
So GVWR is 6800 and GCWR is 9850...if you would happen to have 3.55 GCWR goes up to 12900
So with those numbers take the 9850 minus 6800 and you get a 2950 lb trailer. Max row is listed at 4510...so that means they are saying the truck must be loaded to no more than 5240.
Chart base weight is 4980. With the assumed 1700 payload base weight would be 5100lbs. So they are saying on a tradesman trim...you can have a driver/passenger/cargo weigh 260lbs to get the max tow.
Hope this is making sense. If not I can explain deeper.
Looks like a 3k trailer for 3.21 and a 6k trailer with 3.55
If you do not know your rear gear ratio go here
https://fcacommunity.force.com/RAM/s/equipment-listing
And enter your VIN
Anxious to here your numbers