Removal Procedure

Remove the track bar. Refer to TRACK BAR REPLACEMENT .
Remove the drivers side rear tire.
Support the rear axle with adjustable jack stands.

Fig 1: Removing Drivers Side Rear Tire
Courtesy of GENERAL MOTORS CORP.
Remove the passenger side rear stabilizer bar end link.

Fig 2: Removing Passenger Side Rear Stabilizer Bar End Link
Courtesy of GENERAL MOTORS CORP.
Remove the passenger side rear shock lower nut.
Remove the rear shock from the rear axle.

Fig 3: Removing Passenger Side Rear Shock Lower Nut
Courtesy of GENERAL MOTORS CORP.
Remove the torque arm bolts at the rear axle.
Lower the rear axle slightly, using the adjustable jack stands.

Fig 4: Removing Torque Arm Bolts At Rear Axle
Courtesy of GENERAL MOTORS CORP.
Remove the passenger side rear coil spring and bushing.

Fig 5: Removing Passenger Side Rear Coil Spring And Bushing
Courtesy of GENERAL MOTORS CORP.
Remove the left exhaust hanger from the underbody.

Fig 6: Removing Left Exhaust Hanger From Underbody
Courtesy of GENERAL MOTORS CORP.
Loosen the exhaust pipe clamp. (5.7 L shown, 3.8 L similar).

Fig 7: Loosening Exhaust Pipe Clamp
Courtesy of GENERAL MOTORS CORP.
Lower the right side of the rear axle enough to remove the muffler.
Remove the muffler by rotating and sliding the muffler out from behind the vehicle.
Transfer the exhaust hanger(s) to the new muffler.