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

[gooffeyguy]

Also, I'm not familiar with LS valve covers. I'm guessing the bolts in the center are the mounting bolts and is there a gasket under them? Mine aren't wet, but the dust/dirt is darker around these bolts so there might be some seepage

 

[Fless]

Mine both have them too, but there is nothing there

My NBS has them with nothing on them. The rubber baffles attach a little lower on a different bracket.

 

[gooffeyguy]

Here are the numbers for mine, should be the same but double check:
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I don't quite understand these part descriptions. "left inner outer" or "left outer inner". Lol

Which one's are the outer most ones that are located behind the headlight housings and which ones are closest to the radiator end tanks?

Even looking at the pics on the GMPartsgiant website, there are 3 pics for each part number and each pic shows a different shaped part.

 

[RooTBeeRthe1st]

Also, I'm not familiar with LS valve covers. I'm guessing the bolts in the center are the mounting bolts and is there a gasket under them? Mine aren't wet, but the dust/dirt is darker around these bolts so there might be some seepage

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Literally just noticed mine doing this yesterday.

 

[gooffeyguy]

I don't quite understand these part descriptions. "left inner outer" or "left outer inner". Lol

Which one's are the outer most ones that are located behind the headlight housings and which ones are closest to the radiator end tanks?

Even looking at the pics on the GMPartsgiant website, there are 3 pics for each part number and each pic shows a different shaped part.

I looked up the different part numbers on Amazon and they show better pics.

I'm needing the 152 part numbers for both sides. I have the 103 part numbers and they are intact and in good shape.

 

[Rocket Man]

Also, I'm not familiar with LS valve covers. I'm guessing the bolts in the center are the mounting bolts and is there a gasket under them? Mine aren't wet, but the dust/dirt is darker around these bolts so there might be some seepage

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They’re rubber inserts, like big o-rings. You need to put the rubbers in, then lube them and insert the bolts iirc. I remember using lube anyway…

 

[RooTBeeRthe1st]

 

[Doubeleive]

that happens almost every day around here, that and no lights on at night. Might have almost died the other night if I hadn't noticed a glimmer in the opposing lane I was turning across freaking idiots, pitch black out and no headlights just 2 deer in car looking stupid when I flashed them

 

[iamdub]

Also, I'm not familiar with LS valve covers. I'm guessing the bolts in the center are the mounting bolts and is there a gasket under them? Mine aren't wet, but the dust/dirt is darker around these bolts so there might be some seepage

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Grommets. I used FEL-PRO VS 50504 R-1 kit for mine. Two valve cover gaskets and eight grommets. The grommets are a bit of a mofo to pop in. Here's what I did: https://www.tahoeyukonforum.com/threads/growing-up-doesnt-have-to-suck.93510/post-1669160

 

[89Suburban]

Anyone know what these two big rivet things are for between the airbox and headlight housing?

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Don’t they hold that rubber piece on?

If I'm not mistaken they're on the NBS too. No idea what they're for.

Mine both have them too, but there is nothing there

Conversation pieces. To keep us OCD freaks from sleeping at night. They remind me of some kind of hanger studs to hang the old school corded phones on the wall. But on a radiator support.