I needed to get a 1 7/8" ball to hook it up. It still would not hook up, so I had to take the ball retainer out. It was rusted and bent so it would not allow the ball to slide in. Next it was time to check the trailer. Tires? Yea, they were inflated but had weather cracks. The owner said one tire was inflated with that fix a flat stuff. Wheel bearings? They were not loose and had grease, even though one cap was missing. I crossed my fingers, said a prayer and left for home. About a mile away, the bump in the road made me think I better pull over to strap it down to the trailer with some good cargo straps. I am used to big heavy boats that stay on their bunks, not a 400 lb little one that leaps about 2 inches on every bump. Thank goodness I brought some heavy duty straps with me.