05gtowner I have to agree with you and the ford tech. Only you know your car batter than anybody if you heard a clunk or excessive backlash well its what you heard. Is a solid one piece better that the stock two piece? Hell yeah for performance of course if your modding your car safety is not a huge concern but for an engineer they have to pass emissions and safety test so of course its going to hurt performance. But if I were you I would still get that backlash adjusted, and hell while your back there throw in some 3.73s.