4x4 service

[Walkthesky]

Hello. I have a 2015 Tahoe with 52000 thousand miles. My local shop says I am due for 4 x 4 service. I’ve probably used the 4 x 4 two or three times in the last five years. I realize transmission service is pretty important. My question is, is the 4 x 4 service just as important to be on a regular schedule?

thanks in advance

 

[79jasper]

Is it listed in the owners manual?

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[Walkthesky]

Is it listed in the owners manual?

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For scheduled service? Yes

 

[wjburken]

Well, the transfer case is spinning whenever the drive shaft is spinning. This includes the through shaft as well as the chain and initial part of the output shaft for the front. The only thing that is not spinning is the front half of the output shaft. That puts heat into your transfer case fluid as well as any associated particles that wear off the chain and other components.

Same goes for your front differential. The axles are spinning the gears in the front differential whenever your vehicle is moving, even if 4WD is not engaged.

In addition to changing the fluids as recommended, or more frequently, it is a good idea to cycle your transfer case into 4WD once in awhile.

 

[79jasper]

For scheduled service? Yes

Then why wouldn't you service it?

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