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

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Good question. Came across the same issue while doing some research for the NNBS upgrade on my NBS, and I'm still wondering. Here's what RA shows for a 2010:

View attachment 427642

EDIT: Most hardware seems to be the solid clip; here's the difference (square hole on bottom pic):

View attachment 427643
View attachment 427644
When I put on the GM heavy duty brake calipers/pads last year I believe they came with clips that look like the top pic
 

George B

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Fresh out of the spa.
image.jpg
 

mountie

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Unsure, sounds like the design and materials changed per Montie's subsequent response
Yup.. the pulley on the new one is made of a solid aluminum, so it is thicker, but the diameter is the same ( of course )
The old pulley is steel... ...thinner.
 

swathdiver

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from what I recall I thnk someone mentioned there being some difference with the brake pads in 2007-2008, might only be certain models, that had a different caliper with a smaller pad mount (i think)
and that regular pads would not fit.
it's posted on the forum somewhere probably in this thread but it's been a while since it came up
might not be related at all but that's all I remember about brakes being any different, some kind of one off thing
@swathdiver might know

There are two different pad sets, one without Active Brake Control, JL4, and one for use with JL4.

In 2008 a 2nd design of each type came out with pad spreading finders on the clips. So for 2008, you'll often see all 4 types.

For 2009 and later, you might find another set listed for JL4, 19421276, I think this is the copper free set.
 

mikez71

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Installed some LED headlight bulbs, Auxito H11 https://www.amazon.com/dp/B0CMCLYN8S

This photo shows the cutoff, so far I'm very happy with them. They were smaller than I expected, look well made.
One of them wasn't quite clocked right looking at the tabs. It came with a small allen wrench and I adjusted one that looked off.
Barely fit on the driver side, little more space on the passenger side somehow.

About what I expected/hoped, definately brighter, whiter. Easy as changing bulbs! Being un-tested, we'll have to see how long they last..

ledcutoff.jpg

The edge lines in the photo are representative of the spread/cutoff/pattern. I don't really see the extra bright oval blob as the photo. (Or they aren't that blinding!)
But you do see the two brighter 'rectangles' that the ovals are within.

on street.. adjusted to not beam oncoming hopefully..
ledstreet.jpg
 
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mikez71

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Definitely impressed for the price/brightness/ease. Plan on keeping them so long as they work..Will see if any issues/quirks pop up..

I'll try and get a better photo where I can be backed up a little further with a single color wall...
 

Grady_Wilson

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Definitely impressed for the price/brightness/ease. Plan on keeping them so long as they work..Will see if any issues/quirks pop up..

I'll try and get a better photo where I can be backed up a little further with a single color wall...
I've had a set of Auxito LED bulbs in another car for about 4 years and they are still doing fine.
Only issue I've noticed is that lately, there are times when you can hear one of the fans making noise if the headlights are on and the car isn't running.
I guess a fan is stating to go out but it hasn't completely failed yet.
Very bright headlights and since they are in projector housings, the cutoff is perfect.
 

mikez71

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Yes the tiny fans and heatsink grooves! I could imagine those getting dusty as well as just the motor wearing out..
4 years so far is promising!

Unfortunately the bright rectangles from my reflectors don't quite make it to the cutoff,
If I cheat the brighter squares up to the horizon, then the dimmer flood area would beam oncoming traffic I'm pretty sure.
Compared to "I can't even tell if my headlights are on!", it's WAY better.

Their fog replacement lights up great as well.. Though I actually had condensation in each one, I may not have had them fully seated.
They seem to snap in place better now, might have rolled the o-ring on insertion before, not sure. Will update after some time..
 

j91z28d1

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I think the dioid dynamics fog lights are the thing. pricey but I have a feeling being so low they are more useful than the headlights on low without the worry if blinding on coming. I don't have them, I went with a bi-led in the fog, even though the light output is amazing. I wouldn't recommend the amount of work to mount them to anyone haha. unless you were that guy that could draw surff up and 3d print it. I wish I was.


I'm ready for the aftermarket to start making moving lights already. so they adjust up down and left right with the road. I have a good amount of light, but up hill still make them useless at times.
 
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I'm a cheapskate and use the $16 Alla Lighting 5201 LED bulbs in the fog light housings.

Alla Lighting 5201 DRL PS19W 5202 LED Fog Lights Bulbs 9009 PS24W FF 12085 C1, 6000K Xenon White 2800lm Xtreme Super Bright 5730 33-SMD 12V Daytime Running Lights Lamps Replacement https://a.co/d/59BIavq

I installed them a few years ago and last month bought another set because one of them got real dim. I replaced both sides and kept the working one for a spare.

My fogs are on anytime the headlights are on

From August, 2020

20200821_200633.jpg
 

Runfor5

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There are two different pad sets, one without Active Brake Control, JL4, and one for use with JL4.
Bit off topic, but does this cause the car to have a 'hill assist' control? Because I swear when getting going from a stop on a hill it feels like it takes an extra push of the pedal like the brakes are holding without my foot on the brake pedal. Never bothered to look it up though.
 

Geotrash

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Bit off topic, but does this cause the car to have a 'hill assist' control? Because I swear when getting going from a stop on a hill it feels like it takes an extra push of the pedal like the brakes are holding without my foot on the brake pedal. Never bothered to look it up though.
Yup. I believe it's the 2012+ Denalis that have Hill Start Assist (HSA).
 

Sparksalot

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Bit off topic, but does this cause the car to have a 'hill assist' control? Because I swear when getting going from a stop on a hill it feels like it takes an extra push of the pedal like the brakes are holding without my foot on the brake pedal. Never bothered to look it up though.
It does catch you by surprise at first. My K2 has it, but there's a display popup when it engages.
 

89Suburban

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This free travel mod is the pain in the arse nightmare I was expecting it to be, and more. I'll be blowing black powder out of my sinuses and lungs for the next few days. And this is just one side. I still have to clean it up. Other side shouldn't be as bad since I will have room for the sawzall blade. Didn't catch the fuel tank which was the priority. Yet anyway. Trying to get this ready for the 4" drop springs due in by the end of the week.


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