What did you do to your NBS GMT800 Tahoe/Yukon Today?

[mikeyss]

The 6.0 Denali already have true dual 3" exhaust up to the muffler. After the muffler it goes single. There's not to much to improve, maybe a better muffler. The 4.8/5.3 get a Y pipe and single 2.75" exhaust to and from the muffler.

 

[Bombsquad85]

The 6.0 Denali already have true dual 3" exhaust up to the muffler. After the muffler it goes single. There's not to much to improve, maybe a better muffler. The 4.8/5.3 get a Y pipe and single 2.75" exhaust to and from the muffler.

I see

 

[Rocket Man]

Anyone know of a good exhaust system for the 05 denali? Every where I look I cant find one for the 6.0l everything is fod the 4.8 and 5.3. Is there a difference in the cat back between the engine sizes?

The 6.0 Denali already have true dual 3" exhaust up to the muffler. After the muffler it goes single. There's not to much to improve, maybe a better muffler. The 4.8/5.3 get a Y pipe and single 2.75" exhaust to and from the muffler.

This. That’s why ARH or Kooks headers for the 6.0 are different than the 4.8 or 5.3. They replace the entire exhaust all the way to the muffler. After that, there’s not much left other than the short over-axle tube and turnout.

 

[Sam Harris]

Replaced my front sway bar end links today. I was hoping that’s where my front end suspension squeak was coming from, but nope. I was trying to find the torque spec for them, and I remember reading somewhere here it is 17ft. LB’s , but having trouble finding / confirming that. Anyone have a reference to point me to?

 

[Rocket Man]

I

Replaced my front sway bar end links today. I was hoping that’s where my front end suspension squeak was coming from, but nope. I was trying to find the torque spec for them, and I remember reading somewhere here it is 17ft. LB’s , but having trouble finding / confirming that. Anyone have a reference to point me to?

I just tighten them until the bushing bulges a bit. Yours look about right.

 

[Sam Harris]

I

I just tighten them until the bushing bulges a bit. Yours look about right.

Works for me. Thanks Mark.

 

[NoReverseYukon]

Had some good finds at the salvage yard today. 1-piece rear wheelwell linings and a retractable-type underhood light from a 1990 Dodge Ram. My current light works, but sometimes I have to give it a tap to turn on. My driveway is on an incline, so I also have to tap it to turn it off - I don't like this method. Dead battery waiting to happen. I'm gonna kick it old-school.

I was looking for one of GM's new design valve cover which relocates the pcv valve away from #1 cylinder, but no luck.

For those of you who installed catch-cans : did you try the new valve cover design and still had oil consumption? What year were these new valve covers introduced. 2006 was still old design.

 

[rpdnali]

Anyone know of a good exhaust system for the 05 denali? Every where I look I cant find one for the 6.0l everything is fod the 4.8 and 5.3. Is there a difference in the cat back between the engine sizes?

I have a Corsa catback on my 06 Denali and I love it!


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[Doubeleive]

Gonna replace them both for sure and they will be oem.

bummer, at least that's a easy fix, better than a broken differential or trans.

 

[Doubeleive]

Here's my motor noise.

Any opinions welcomed.
Here's the condition of the View attachment 231625 View attachment 231626 View attachment 231627 header bolts.

sounds like lifter tick, I have never used sea foam but you might get lucky with some kind of cleaner or flush, my 03 did it for along time then after a oil change one day it just decided to stop, every once in a while after it has sat idling you can hear it very faintly but it has generally gone away.