Sierra Classic 2500 4WD V8-6.0L (2007)
9. For vehicles without an auxiliary cooler, remove the cooling lines from the radiator.
10. For vehicles with auxiliary cooling, remove the cooling lines from the radiator.
11. Remove the oil cooling lines from the auxiliary oil cooler.
Installation Procedure
1. Install the transmission oil cooler lines to the vehicle.
2. Important:
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Do not reuse any of the existing oil lines or oil line fittings if there is excessive corrosion.
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Do not reuse any of the existing retaining rings that were removed from the existing quick connect fittings. All retaining rings being installed
must be new.
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Ensure the following procedures are performed when installing the new retaining rings onto the fittings.
Install a NEW retaining ring (E-clip) into the quick connect fitting using the following procedure:
