System: powertrain; driveline; universal joint.vehicle description: medium duty trucks equipped with rockwell interaxledrivelines and freightliner airliner suspension.note: if your vehicle IS presented to an authorized dealer on an agreed uponservice date and the remedy IS not provided within a reasonable time and freeof charge or the remedy does not correct the defect or noncompliance, pleasecontact freightliner service center at 1-503-735-8000. Also contact the nationalhighway traffic safety administration's auto safety hotline at 1-800-424-9393.