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Front and rear differential service maintenance schedule

askibum02

By askibum02
in Engines & Drivetrain

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askibum02 Enthusiast

askibum02

Posted
Posted

What is the maintenance interval for the front and rear differential?  I am coming up on 45K on my '17 and I'm going to be doing my transfer case and transmission fluid. 

 

47346422372_c36b290e76_o.jpgUntitled by Brett Valentine, on Flickr

TXGREEK Senior Enthusiast

TXGREEK

Posted
Posted

Depending on your driving characteristics and whether you tow. I do mine every 10k Miles, a bit excessive but it’s very easy to have done and cheap. Many do it every 20-30K miles. Your owners manual will be at the max.

 

 

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askibum02 Enthusiast

askibum02

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Posted

My truck is mainly a commuter.  I drive about 100 miles a day round trip at hwy speed for most of it.  I tow and haul occasionally.

Logan Lanfear Enthusiast

Logan Lanfear

Posted
Posted

Id say replace it now while youre doing all that other work.  Use nice fluid if you plan on letting them go for 45 to 50k

DustinZ71 Enthusiast

DustinZ71

Posted
Posted (edited)

For those that have had these maintenance items done before, what is the approximate cost for changing diff fluid, transmission fluid, transfer case fluid etc? Im coming up on 45k and want to plan ahead $$ wise. Thanks in advance.

Edited by DustinZ71
Black02Silverado Senior Enthusiast

Black02Silverado

Posted
Posted (edited)

As for the front and rear differentials. 

I change mine out early from the start to AMSOIL Severe Gear 75w-90.  I did this on my 2002 at 1,000 miles on the truck and then again at 72k.  Then again at 162k and the fluid had 90k miles on it and the UOA showed great and to extend it out to 120K.  I tow about once a month a 5k, 10x20 box trailer. 

 

I just changed out the fluid on my 2019.  Not as easy on the front since there isn't a drain plug like on the K2's and the fill plug is a tight fit between it and the electric power steering. I was only able to suck out a little over a qt of fluid.    The back is the same as the K2's.  Reusable gasket and all.

 

Cost is what the fluid would be if you do it yourself which is easy.  My 2019 took a little over 5qts to do both diff's.   My 2002 takes 2qts for the front and a little over 2qts for the rear.

 

The transfer case is easy as well. It holds about 2qts for the AMSOIL ATL fluid.

 

The transmission I had the dealer do mine at first.  16qts of fluid and they charged me $80 for labor. 

Edited by Black02Silverado
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Jacoby Enthusiast

Jacoby

Posted
Posted (edited)

The manual recommends a lighter fluid in the rear, that's odd.  Since Im getting new gears put in on the 27th I'll get fresh fluid installed then and then again after 500 miles of break in get the fluid changed again.  I'll be right at 18k miles when that goes down.  I'll be using Redline gear oil

Edited by Jacoby
mookdoc6 Senior Enthusiast

mookdoc6

Posted
Posted
On 3/16/2019 at 7:51 PM, TXGREEK said:

Depending on your driving characteristics and whether you tow. I do mine every 10k Miles, a bit excessive but it’s very easy to have done and cheap. Many do it every 20-30K miles. Your owners manual will be at the max.

 

 

Sent from above

 

I do my oil every 10K?  I have never heard of anybody doing Diff's @ 10K.......CRAY..CRAY

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TXGREEK Senior Enthusiast

TXGREEK

Posted
Posted
I do my oil every 10K?  I have never heard of anybody doing Diff's @ 10K.......CRAY..CRAY


Wait! You get oil changes every 10k??

Yeah, I know. That’s nothing, my 16 Z71 DMax, it got a rear diff change every time I towed a 5th wheel which was every two months. Must be an OCD thing with me, another reason why friends line up when they hear I’m thinking of selling my trucks.


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  • 2 years later...
swimmer55 New Member

swimmer55

Posted
Posted

I just got a quote from the local dealer for the front/rear differential 45,000 mile service 

533.00! 

seems a tad high……

Black02Silverado Senior Enthusiast

Black02Silverado

Posted
Posted
7 hours ago, swimmer55 said:

I just got a quote from the local dealer for the front/rear differential 45,000 mile service 

533.00! 

seems a tad high……

Think that is high, they wanted $500 to change out the thermostat on my 2016 Suburban.  $35 and 10 minutes of my time and all done.  Crazy what they charge.

 

I did my own fluid changes on my 2019 differential.  Had to suck the front out since no drain plug.  GM in their infinite wisdom decided to get rid of it for some reason.  It wasn't hard to do on the back but the front the electrical harness for the power steering is right there kind of in the way but not.  AMSOIL's Easy Packs make changing less messy that is for sure. 

 

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