1. Once we decided that the knuckles needed to be turned, we scrambled over to Dynatrac in Huntington Beach, California to get the job knocked out. For around $700, Dynatrac will cut and turn your housing, taking the necessary time to machine the spring perch on the centersection to match up correctly. Once the welds were drilled out and the tubes pressed out, Brian Honsberger checked the outer diameter of the axle tube and compared it to the inner diameter on the centersection. Ideally, Dynatrac wants the axle tubes to be about five thousandths bigger than the centersection to ensure a tight fit when pressing the tubes back in.