Trailing Arm: Description and Operation

The purpose of the trailing arm is to control the fore and aft movement of the spindle. The trailing arm has rubber isolator bushings at each end. Each trailing arm is attached to the spindle and the body of the vehicle. The trailing arm attaches to the rear spindle through a bracket which is bolted to the bottom of the spindle. The trailing arm attaches to the body using a bracket attached to the frame rail and rear torque box.

Trailing arms are normally replaced only when the part has been damaged or when the vehicle has been involved in an accident. If a suspension part has been damaged, be sure to check the underbody dimensions of the car. If underbody dimensions of the vehicle are not correct, the frame must be straightened before replacement suspension components are installed.