[Manskliga Anden]

I recently purchased a 2004, GMC Yukon XL Denali. Can anyone tell me about or point me to technical information about the components used in the AWD system of this vehicle? i.e. What type of center differential is used? Who makes the center differential? How is the torque balanced front to rear and side to side and to what extent or what percentages? What is the description of the fluid used in the center differential? Is it a synthetic or semi-synthetic fluid? Any help understanding this drive system is greatly appreciated - thanks!

 

[Manskliga Anden]

Doing some broad web surfing the last few days; this is what I have found so far:

The 01/02 Yukon XL Denalis use a New Process transfer case with an 'integral viscus coupling' design.

The 03/04 Yukon XL Denalis use a Borg Warner transfer case with an 'open differential' design.

I can't confirm this information in any official way; just brief references in automotive journalist articles.

 

[Manskliga Anden]

Any help is much appreciated . . . I don't have All Data but would this provide any insite?