Installation Procedure

Install the exhaust intermediate pipe and muffler assembly from the vehicle.
Install the 3-way catalytic converter (4) into the exhaust Isolators (3) with a NEW gasket (2) and tighten the fasteners (1) to 17 N.m (13 lb ft).

Fig 1: 3-Way Catalytic Converter & Exhaust Gasket
Courtesy of GENERAL MOTORS COMPANY

CAUTION: Refer to Fastener Caution .
Install the exhaust rear muffler (2) into the exhaust isolators (1).

Fig 2: Rear Exhaust Muffler & Isolators
Courtesy of GENERAL MOTORS COMPANY
Install the rear axle. Refer to Rear Axle Replacement .
Lower the vehicle.
Start the engine and check for exhaust leaks.