In the countless years of driving a full size pick-up and a 7x12 trailer, I never thought the amount of damage this setup could do in a 10 mph accident. The trailer does not have breaks and a 3500 lbs axle. It had a 48"&36" with blowers,trimmers. Thank God there were no kids in the car I hit. I hit a brand new BMW 325i square in the back. I shot him like a hockey puck. When I slammed my brakes the trailer just kept on pushing . Word of advise, get brakes for your 3500 lbs. trailer. A panic stop, emergency manuver, is not in your arsenal.