I just replaced the inner and outer tie rods, the adjusting sleeve, and the idler arm. The instructions on the parts said to tighten the castle nuts until I can get the cotter pin inserted. This isn't very tight at all. I was wondering if I should follow those instructions or go ahead and torque it to the proper specs. The problem is that there is a popping sound from the front when turning under light acceleration at low speeds. I'm not sure at higher speeds and it's kind of freaking me out.