Sierra Denali RWD V8-6.2L (2009)
3. Install any necessary exhaust muffler insulators that were separated from the muffler.
4. Using the transmission jack, raise the transmission slightly.
Caution: Refer to Fastener Caution (See: Service Precautions/Vehicle Damage Warnings/Fastener Caution) .
5. Install the exhaust manifold pipe to exhaust manifold nuts and tighten to 50 Nm (37 lb ft) .
6. Install the exhaust muffler to exhaust manifold pipe nuts (1) and tighten to 45 Nm (33 lb ft) .