Four-Wheel Drive - Chevrolet 2006 Silverado 1500 Pickup Owner's Manual

Four-Wheel Drive

How to Check Lubricant
Lubricant checks in this section also apply to these
vehicles. There are two additional systems that need
lubrication.
Transfer Case
When to Check Lubricant
It is not necessary to regularly check transfer case fluid
unless you suspect there is a leak or you hear an
unusual noise. A fluid loss could indicate a problem.
Have it inspected and repaired.
Manual Transfer Case
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