You didn't say what engine or rear axle ratio the half-ton truck has, but you should do OK with it. I use my Chevy Trailblazer to tow my car hauler trailer loaded with my CJ7, and it tows beautiful. The Trailblazer has a 300 hp V8 and 3.73 gears, for reference. Tow rating on the Trailblazer is 6600 lbs, and my loaded trailer weighs about 5500.
If you find that the trailer lowers the back of the pickup too much when hooked up, you'll probably want to go to a weight-distributing hitch. That will transfer some of the tongue weight to the front axle.