Rear Axle; Four-Wheel Drive - GMC 2005 Sierra 1500 Pickup Owner's Manual

Rear Axle

When to Check Lubricant
It is not necessary to regularly check rear axle 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.
How to Check Lubricant
1500 Series Shown, 2500 Series Similar
5-58
To get an accurate reading, the vehicle should be on a
level surface.
•
The proper level for the 1500 Series is from
5/8 inch to 1 5/8 inch (15 mm to 40 mm) below the
bottom of the filler plug hole.
•
The proper level for the 1500HD Series,
2500 Series, 2500HD, and 3500 Series is from
0 to 1/2 inch (0 to 13 mm) below the bottom of the
filler plug hole.
•
The proper level for the 1500 and 2500 Series
vehicles with QUADRASTEER™ (4-Wheel Steer) is
from 0 to 1/4 inch (0 to 6 mm) below the filler
plug hole.
Add only enough fluid to reach the proper level.
What to Use
To determine what kind of lubricant to use see
Recommended Fluids and Lubricants on page 6-14.

Four-Wheel Drive

Lubricant checks in this section also apply to these
vehicles. There are two additional systems that need
lubrication.