My car came with the light torsion rods. Previous owner added a 3 piece rear spoiler but never upgraded the rod. I bought the heavier torsion rod and have read all of the how-to-replace posts. I still do not know how you guys are using basic hand tools (sockets, vice grips, etc) and winding that spring around. I've made several attempts but gave up. Today I looked around my garage for some scrap to make a tool and came up with a piece of square tube and a 3ft piece of rebar. The square tube had a hole at one end for slipping over the torsion rod and I put a 1/2" hole at the other end for the rebar. I put a hose clamp on on both torsion rods to keep the heavy one under control while I am twisting it. The length of the square tube extended out over the quarter panel and the rebar provided the much needed leverage. Worked like a charm on the first attempt and the best part is the rear window is not in danger using this method. Pics of the tool below. No pictures of the tool in action because I needed both hands!