2. Attach the safety chains to the towing vehicle's frame. This is the strongest part of the vehicle and will provide the most secure attachment for the safety chains.
3. Use a shackle or bolt to attach the safety chains to the frame. This will ensure that the safety chains do not come loose.
4. Make sure the safety chains are long enough to reach the trailer's coupler. The safety chains should be long enough to allow the trailer to turn without binding, but not so long that they drag on the ground.
5. Inspect the safety chains regularly for damage. If you notice any damage, replace the safety chains immediately.