Tandem pivet system, with torsion suspension no axle for heavy load, HEAVY DUTY 2 BULL DOG HITCH WITH SAFETY CHAINS. TILT LOW BOY TRAILER HAS 4 BRAND NEW 16 INCH 16 PLY HEAVY HAULER TIRES. tilt 6 ft. wide by 13 feet heavy gage WITH 13 wide diamond plated runners with expanded metel center. Custom shop build heavy duty steel tilt to load my all terrain Nissan fork lift, sky tracker, Skid steer and just about anything thing that would fit on the 6 by 13 heavy duty tilt bed I havent been able to overload this baby. Build to rinse heavy dirt and debris through expanded metal center while loaded. WAS $4200 NOW $3500 SERIOUS OFFERWILL CONSIDER SOME SERIOUS TRADES FOR ENCLOSED TANDEM TRAILER OR JUST ABOUT ANYTHING OF EQUALGRADER VALUE .BILL OF SALE ONLY SHOP BUILD TRAILER