Adding a Class 2 Hitch to a 24' TT to tow a small trailer..?

There is a pic in The where do i put my atv thread. I dont have pics of the hitch. I started out pulling this setup with a Ford F250, then a Dodge 2500 and i now have a GMC dually. All were crewcabs and all pulled it just fine loaded exactly as you see in the pic. I only replaced the trucks because the Ford hit 100k mi and the Dodge was unreliable and the dlr couldnt seem to fix it.