I think that what u are refering to is more comonly known as the dog bone. Im not exactly sure this is what ur talking about but pretty close. It's purpose from the factory is to remove harmonic vibrations caused by the stock rear-end and DS. You can just chuck it, i think a lot of people just rip it off anyways to save wieght. You really dont need it if you have a nice set of aftermarket gears and alum DS that are better balanced. Good luck hope this helps