My front two 15x7 Weld Pro Stars (circa 1999) rattle like heck going over small bumps. I thought it was the center caps at first, so I was going to deal with it when I did my Hydroboost conversion back in July. This might be a bit hard to describe, but there is an aluminum insert sandwiched in the wheel for the lugs and hub to pass through. This is loose on both fronts and it rattles incessantly. Is this supposed to be loose at all? If it can't be fixed, I may have to pull the trigger on the Torque Thrust II wheels I want.