I have an enclosed trailer with recently replaced ramp door assist cables. My assistant broke them again and I need to replace them again. I wanted to know if any of you knew where to get the tools needed to fix them myself. I watched the trailer mechanic do it last time with a pipe wrench, adjustable wrench and 2 rods used to wind the spring up. The rods are the only thing I don't have and don't know where to get them.