What did you do to your NNBS GMT900 Tahoe/Yukon Today?

So, I am needing to change the front differential and transfer case fluid. What should I use? I am not looking into buying some "absolutely" the best type fluid, just something that works, and is acceptable for GM.

2007 Yukon Denali XL

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HoS said:

So, I am needing to change the front differential and transfer case fluid. What should I use? I am not looking into buying some "absolutely" the best type fluid, just something that works, and is acceptable for GM.

2007 Yukon Denali XL

Sent from my SAMSUNG-SM-G935A using Tapatalk

Click to expand...

Syn 75w90 rear.
80w90 front.



Pretty sure denali uses dex 6 since full time awd.

Pretty sure brand has nothing to do with it on these types of things. I've used the cheapest I can find and haven't had problems as long as you follow the right fluid type.

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Finished building my sub enclosure the other day and installed amp and sub today. First test sounded good. Now just have to tune it a little more tomorrow since I ran out of daylight. Try and get some pictures tomorrow as well.

Enclosure is a slot ported down fire fitted behind third row seats. Boss 1100 watt 400watt RMS mono block pushing a DS18 10" shallow mount 4ohm 1000 watt 500 watt RMS. I built the box as close to level when third row seats are folded down. I'm planning on building a platform of some sort so I can keep seats back there and still have cargo space. When needed I'll be able to fold up the platform and either toss it in the back or store it at home.

This is the only pic I have of the enclosure right now. This pic shows the slotted port and shape is fitted to go between the third row seat handles.

Also got my struts in today from summit almost have all the parts I need to start on my front end rebuild and 2.5" lift.

Installed tow mirrors.

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dipped the grill and lower grill to see how it would look into think all the chrome will be going to black now going for the stormtrooper look bottom one not mine

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@Burb!! I was looking at these the other day and was waiting to see someone on here go with them. They look sick but hopefully they will make them for a little cheaper soon. Looks good tho. Any lights on them? Get some close ups!

Nothing serious, just vinyl wrapped my rear Chevy emblem with white carbon fiber film I had laying around...

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Installed 2 USB ports for the 3rd row seat so people riding in the 3rd row can charge devices. And also blacked out back windows!

I replaced my clearly burnt out DLR on our Denali ... and now neither of them come on ... WTH???