Sierra 2500 Denali 2WD V8-6.0L (2011)
1. Install a NEW exhaust manifold pipe gasket onto the muffler studs.
2. Install the exhaust manifold pipe hanger rod (1) into the exhaust isolator (2).
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 (3) with the exhaust manifold nuts 1) and tighten to 50 Nm (37 lb ft).