When pintle fastenings are used to connect a trailer to a towing vehicle, what is required between the vehicles?

• A. Tow Strap
• B. Safety Chains
• C. Breakaway Cable
• D. Safety Pins

Answer: (B)

When pintle fastenings are used, a backup connection between the trailer and towing vehicle is required. Safety chains provide this redundant link, helping keep the trailer connected if the pintle coupling were to separate or fail. They should be attached to the trailer and vehicle so that, in a worst-case scenario, the trailer remains under control and cannot detach completely.

Tow straps are not a reliable or standard backup connection for permanent towing and can fail under load. A breakaway cable is intended to trigger trailer brakes if the trailer detaches, not to keep the vehicles linked. Safety pins are used for securing components of the hitch, not for maintaining the connection between the vehicle and trailer.