Sierra 3500 Denali 4WD V8-6.0L (2011)
1. Install the auxiliary oil cooler to the vehicle.
Caution: Refer to Fastener Caution (See: Service Precautions/Vehicle Damage Warnings/Fastener Caution).
2. Install the bolts (1) and the push pins (2) that retain the auxiliary oil cooler to the radiator brace.
Tighten the bolts to 12 Nm (106 lb in).
3. Connect the transmission oil cooler lines to the auxiliary cooler. Refer to Transmission Fluid Cooler Hose/Pipe Replacement (See: Fluid
Line/Hose/Service and Repair/Allison - Automatic Transmission/Transmission Fluid Cooler Hose/Pipe Replacement).
4. Install the radiator grille. Refer to Radiator Grille Replacement (Chevrolet) (See: Body and Frame/Grille/Service and Repair/Radiator Grille
Replacement (Chevrolet))Radiator Grille Replacement (GMC) (See: Body and Frame/Grille/Service and Repair/Radiator Grille Replacement
(GMC))Radiator Grille Replacement (Chevrolet HD) (See: Body and Frame/Grille/Service and Repair/Radiator Grille Replacement (Chevrolet
HD))Radiator Grille Replacement (GMC HD) (See: Body and Frame/Grille/Service and Repair/Radiator Grille Replacement (GMC HD)).
5. Check and add transmission fluid as necessary.
