Express 1500 RWD V8-5.3L VIN T (2004)
3. Notice: Refer to Fastener Notice in Service Precautions.
If equipped with a 4.3L engine, install the retaining nuts and new gasket to the front of the muffler.
Tighten the catalytic converter to muffler retaining nuts to 48 Nm (35 ft. lbs.).
4. If equipped with a 4.8L/4.3L/6.0L engine, install the right catalytic converter in the muffler.
Tighten the clamp nut to 54 Nm (40 ft. lbs.).
5. Install a new gasket and the nuts retaining the left catalytic converter to the muffler flange.
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Verify that the exhaust system is properly aligned and tighten the right catalytic converter clamp to 54 Nm (40 ft. lbs.).
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Tighten the catalytic converter to the muffler flange nuts to 48 Nm (35 ft. lbs.).
6. Lower the vehicle.
