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

[08z71bgm]

I'd leave it deactivated. My reasoning is that the lifters are held rigid by a pin that is retracted when AFM activates. If the pin never moves, the lifter can't collapse uncommanded unless a part physically breaks. If you turn on AFM, the pins may retract but not return to the "locked" position, leading to failure.

I’m planning on doing this soon with hptuner. Don’t want to do dod delete anytime soon. Too many projects already.

 

[Just Fishing]

I have been thinking about buying a cordless impact but decided on this one thanks to you. The others were $200 without a battery and are big. I like this compact design with about the same torque.

If you already have the air, then air tools are the way to go.

I could totally break down my air ratchets, impacts, and their uses...

For air ratchets, i have one for basic use, and another that can do 115ft lbs.
the 115ft lb one I use for rusty bolts, or ones that have locktite on them.
But if your not careful, it can and has smashed my knuckles against stuff, sometimes with a mild and painful pinning...


ETA: After i dumped a few thousand into my air system preparing to do painting and mild body work i started to justify many new air tools.

+ the extra flow i have turned into high flow everything
V- style connectors to make use etc.
Just the V-style air connectors really gave my air tools a boost...
I also usually run 110 psi at my regulators. even if the tool says 90psi, the 110 seems to help especially with impacts.

 

[08z71bgm]

So I noticed my 1-2 shift is quite hard. Like slip hard. I reset the adaptive learn and made sure the fluid was at the correct level hot and it looks good.

 

[Rocket Man]

My first reaction was that it was cool. But the more I look at it, the more I think it's a little too much. Personally, I wish I could remove the GMC from mine altogether, without having to buy an aftermarket grille. I settled for vinyl wrapping the red with black to match the paint.

The best front on those imo is just a black grill with no emblem, and black headlights with clear lenses. Especially with a black truck. Just my .02

 

[Rocket Man]

So I noticed my 1-2 shift is quite hard. Like slip hard. I reset the adaptive learn and made sure the fluid was at the correct level hot and it looks good.

Don’t like.

 

[08z71bgm]

Don’t like.

Me either. It’s prolly clutch pack slippage.

 

[Just Fishing]

So I noticed my 1-2 shift is quite hard. Like slip hard. I reset the adaptive learn and made sure the fluid was at the correct level hot and it looks good.

Keep a close eye on it,
There are some things in the valve body that affect that.
Usually the pressure switches start going wonky when they start splitting.

There is also a pressure regulator valve that starts wearing out, fixed via a transgo or sonnax kit...

 

[Just Fishing]

Well i have most of my parts for my oil pickup tube O-ring replacement job now.

New pan gasket.
New oil cooler to pan gasket.
pressure relief valve deflector (was like $2 at the dealer).
New pressure relief valve (for why not)

Since i opted to wait for the next weekend to complete the job, i also picked up some "while I'm in there" things.
New Oil tube "Brace" for why the f not.

I also noticed my front axle mounts have some play in the rubber to mount.
So i have one OEM side in hand (all i could get in time for the weekend).
And a Moog for the other side out for delivery (half the price of OEM).

And doing some research on the issues, i have been worried about a squealing type sound coming from my engine bay.
Sounds internal to me, but it's probably not related.
But just incase, I'm pulling the oil deflector pan to take a good look at my cam bearings...

 

[Doubeleive]

crappy cel phone photos but I was thinking the emblem might be to big but maybe not

 

[kbuskill]

crappy cel phone photos but I was thinking the emblem might be to big but maybe not
View attachment 260119 View attachment 260120 View attachment 260121

Maybe lower it one hole... looks just a tad high to me.