Sierra 1500 4WD V6-4.3L (2008)
3. If vehicle has a extended cab, position and install the rear exhaust heat shield (2) and/or the front exhaust heat shield (1) to the underbody studs.
4. Install the exhaust heat shield nuts.
Tighten the nuts to 9 N.m (80 lb in).
5. If vehicle has a regular cab, position and install the rear exhaust heat shield (2) and/or the front exhaust heat shield (1) to the studs.
6. Install the exhaust heat shield nuts.
Tighten the nuts to 9 N.m (80 lb in).
7. Install the catalytic converter. Refer to Catalytic Converter Replacement (4.3L) (See: Catalytic Converter/Service and Repair)Catalytic Converter
Replacement (4.8L, 5.3L, 6.0L, 6.2L) (See: Catalytic Converter/Service and Repair)Catalytic Converter Replacement (6.6L) (See: Catalytic
Converter/Service and Repair) .
