Sierra Classic 2500 4WD V8-8.1L (2007)
Connection.
7. Remove the oil cooler lines from the vehicle.
Installation Procedure
1. Install the transmission oil cooler lines to the vehicle.
2. Connect the cooling lines to the transmission. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and
Connection.
3. Install the engine protection shield.
4. Lower the vehicle.
5. Connect the transmission fluid cooler lines from the radiator. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection
and Connection.
6. Connect the transmission fluid cooler hose to the Auxiliary oil cooler. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting
Disconnection and Connection.
7. Install the front grille. Refer to Grille Replacement (Chevrolet) Grille Replacement (GMC).
Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection
Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection
