this pickup bed trailer is well built. the frame is 4 inch by 2 inch rectangle tubing. i pulled the ring gear and spider gears out of the rear end and filled with oil. the hitch has 3 settings. first is 8 inches off ground for my mower- second is 18 inches for the blazer and 3rd is 25 inches off ground for jeep. bed is 6 ft.x 56 inches wide.( inside bed) 2 new 8 ply tires and 1 like new.