Does anyone know what the weight rating is for tailgate cables for full size Chevy trucks? I've read the manufacturer will not rate them due to liability issues. I've also read of cables failing when loading heavy objects such as motorcycles, ATV, and lawn tractors. Is there any after market cables that are stronger than the factory ones? Is there any other way of assuring the cables won't fail during critical loading times? I have thought of fabricating a 2X8 of the proper length from the ground to the tailgate in order to take some of the stress off of the cables. Anyone have any ideas on this?????