Torque Arm Suspension System, 1999-04 Mustang, Standard Duty Maximum motorsports package for the 99-04 Mustang GT. This Torque Arm Package includes, MM Standard Duty Torque Arm, MM Panhard Bar, MM Heavy Duty Non-adjustable Rear Lower Control Arms. This package is for the 8.8" axle only. Specify whether you have installed rectangular or round subframe connectors when ordering.