Trailblazer Envoy Front Differential Fluid Change

This is a tutorial on how to change the front differential fluid on a 2002 - 2009 GMC Envoy, Chevy Trailblazer, Oldsmobile Bravada, Saab 9-7x and Isuzu Ascender.

This is the original factory fluid that has never been changed in 13 years with 210,000 miles.

You will need:

1 quart 75 W 90 Synthetic Axle Lubricant (ACDelco #10-4016)
( https://www.amazon.com/ACDelco-10-401... )
13 mm socket or wrench
One 2+ quart drain pan
One funnel
One empty 2+ quart containers for used oil
PB Blaster
Jack + Jack Stands
Quart Pump

Video also outlines whether running low fluid can cause damage to the front differential.

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