Sierra Denali RWD V8-6.2L (2009)
6. If vehicle has a crew cab, remove the exhaust heat shield nuts.
7. Remove the exhaust front heat shield (1) and/or the rear exhaust heat shield (2) from the studs.
Installation Procedure
1. If vehicle has a crew cab, position and install the rear exhaust heat shield (2) and/or the front exhaust heat shield (1) to the underbody studs.
Caution: Refer to Fastener Caution (See: Service Precautions/Vehicle Damage Warnings/Fastener Caution) .
2. Install the exhaust heat shield nuts and tighten to 9 Nm (80 lb in) .
