I have been using wood racks for years with the truck. Started with my 84 then built new ones for the 07 3/4 ton and they are now on the one ton. When I load down the truck the racks spread too much for my liking. When I am going to transport on public roads I WILL NOT over do it. When I am moving wood on private property I will load it up till I am maxed out. I have hooked a chain between the rear of the racks to stop them from spreading. It is a pain to load with the chain across the back. My concern is the wood stakes will break and the load will hit the road and cause an accident. My question is, should I make racks that have metal post to prevent the possibility of breaking? What can I do to prevent the racks from spreading, other than chain the rear of the rack?