Four-Wheel Drive - Chevrolet 2009 Silverado Owner's Manual

All Other Series and Engines
To get an accurate reading, the vehicle should be on a
level surface.
•
For all 4.3L, 4.8L and 5.3L 1500 Series applications,
the proper level is 0.04 inches to 0.75 inches
(1.0 mm to 19.0 mm) below the bottom of the filler
hole, located on the rear axle. Add only enough
fluid to reach the proper level.
•
For all 6.0L and 6.2L 1500 Series applications,
the proper level is from 0.6 inches to 1.6 inches
(15 mm to 40 mm) below the bottom of the filler plug
hole, located on the rear axle. Add only enough fluid
to reach the proper level.
5-50
•
For all 6.0L and 6.2L 2500HD Series applications,
the proper level is from 0 to 0.5 inches (0 mm to
13 mm) below the bottom of the filler plug hole,
located on the rear axle. Add only enough fluid to
reach the proper level.
•
For all 6.6L DURAMAX DIESEL 2500HD Series
applications and all 3500 Series applications,
the proper level is from 0.6 inches to 0.8 inches
(17 mm to 21 mm) below the bottom of the filler plug
hole, located on the rear axle. Add only enough fluid
to reach the proper level.
What to Use
Refer to the Maintenance Schedule to determine what
kind of lubricant to use. See Recommended Fluids
and Lubricants on page 6-15.

Four-Wheel Drive

Lubricant checks in this section also apply to these
vehicles.
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.