Long story short, there is an 05 Twin Turbo Cummins powered Dodge that needs a traction bar system. Due to a few constraints my thought of what to do is running either one of two setups: or: So many big Diesels run the simple 2 straight bar setups, and I see so many of them bent, twisted, or broken. The friend of mine who used to own the truck in question has built 2 traction bar systems. Both failed. One bent when put under strong use(pulling a sled at a competition), and the other ripped off of the frame (weld failure). I really think it can all be done better. Just the simple addition of a shackle should give it less bind. My main worry however is that it would have to be a very strong shackle setup, and the bolt through the bushing end of the shackle would have to be strong. My wonder is, what size bolt to go with and where to get bushings to match. I'd think at least 5/8" bolt if not 3/4". The truck is at over an estimated 1000 ft-lbs so its doing some damage.