Changing the transfer case fluid.

[Z45]

4 hours ago, GETGONE said:

GM went away from the specific auto track transfer case fluid? When I had my 2008 Avalanche with auto-track it required specific fluid different than that of just a standard 4x4 transfer case.

Came across this information on GM MP Transfer Cases:


Starting with the 2008 model year General Motors introduced a series of new transfer case designs to replace the New Venture Gear designed transfer cases used for many years. Built by a company known as Magna Powertrain (MP) the new design units are available as 3 different models:

Manual Shift ( RPO NQG) (Models 1222/1225/1226)
Electric Shift (RPO NQF) (Models 1625/1626)
Auto (RPO NQH) (Models 3023/3024)

Several models are available for each application, these include the 1222/1225 and 1226 manually shifted units, the 1625/1626 electric shift units and the 3023 and 3024 auto/active transfer case model.

Note: All models use Dexron VI fluid.


 

[johnnyquick]

On 9/18/2025 at 10:49 AM, Z45 said:

$600 IMO is a big rip-off.    Easy job, akin to changing oil. Remove drain plug, drain. Put plug back in and add 1.6 qts dexron VI atf.   

Oops my bad was thinking Tranny fluid not transfer case 

Edited October 6, 2025 by johnnyquick

[GETGONE]

Always remove the FILL plug FIRST so you can be sure to get fluid back in. Nothing like draining all the fluid and no way to fill it. I couldn't get the fill plug open on the front diff on my 08 Avalanche so it didn't get changed before I sold it.

[GN2018]

I just got a 10% off coupon from the dealer.  I’m going to use that and whatever rewards points I have left and get the rest of the fluids changed at the dealer.  Sucks, but I just have anyone I trust more than the dealer at this point and while the truck is still under the extended warranty, I want to make sure there’s no issues traced back to me doing something wrong.