Howdy...first turn off the CAPS...it is considered rude on a BB and equates to shouting.
What kind of truck and what size 5er? A 4x4 is taller to begin with an a lift kit on top of that makes it even taller. Some trailers can have the axles flipped (put below the springs) and some have adjustable jake plates to raise the trailer.
Generally to provide better stability when towing, you want the truck and trailer as low as practical which means no lifts. You also need a minimum of 6" clearance between the bed rails and the trailer when hitched and the trailer is setting fairly level.
Then you have the issue with a lift kit of the ususal oversized tires which decreases you effective axle ratio which leads to poor towing performance.
Next issue is the GCVWR and GVWR of the unmodified truck. Lifts and larger tires tend to lower the towing rating.
Let's see what you have?
Amateur Radio Operator (KE5DFR)|Full-Time! - 2012 6.7L Ford Crew Cab Dually -2013 HitchHiker Champagne 38RLRSB - Travel with one Standard Schnauzer and one small Timneh African Gray Parrot