C 3500 HD Truck 2WD V8-8.1L VIN G (2002)
20. For vehicles with the 8.1L Engine, install the retainer clips and brackets that secure the transmission cooler lines to the engine.
21. Install the flair nuts securing the oil cooler lines to the radiator or the auxiliary oil cooler, if equipped.
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Tighten the flair nuts to 45 Nm (33 ft. lbs.).
22. Lower the vehicle.
23. Fill the transmission to the proper level with approved fluid.