How do you replace trailing arm 2002 grand am?

To replace the trailing arm on a 2002 Grand Am, start by securely lifting the vehicle and removing the rear wheel on the side with the damaged trailing arm. Disconnect the trailing arm from the chassis and the rear axle by removing the bolts, which may require penetrating oil if they're rusted. Once the old trailing arm is removed, install the new one by reversing the disassembly steps, ensuring all bolts are torqued to the manufacturer specifications. Finally, reattach the wheel, lower the vehicle, and check for proper alignment and function.