Depending on whether the Ranger has the Trailer towing package or not, its limit might be 3,500lbs. And it's limit for unbraked trailer is 2k lbs.
Assuming
@FresnoTom is towing in California (based on signature) then he is pretty much guaranteed to need a trailer brake controller.
California trailer law: Every trailer coach or camp trailer with a GVW of 1,500 lbs. or more must be equipped with brakes on at least 2 wheels. (It's almost impossible to find a travel trailer with lower GVW; what the trailer actually weighs doesn't matter, it trailer's GVW that counts).
Depending on the size of the trailer, towing mirrors might be required. Also, while not required by Ford, a weight distributing hitch will make towing much more comfortable is the travel trailer is of significant size. (Knowing a little more about the trailer would be helpful).
Remember the brochure tongue weight was for the trailer empty - adding couple 20lb propane cylinders and battery can easily add another 100lbs on the hitch, more if full. And depending on how you load the trailer you could add even more.
Plan your route, be prepared to drive slower, leave a gap to traffic ahead, anticipate any stops (all the defensive driver stuff). Make wide turns - the trailer is going to turn inside. Watch overhangs - trailer could easily be 3' higher than the Ranger. Expect reduced fuel economy - premium let's the turbo make most power, but it gets pricey.
From there have fun, take pictures and let us know how it goes.