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

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alpha_omega

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that place in Texas doesn't show one for the yukon, well it does but only a 53" (up to 2009) then it skips to 2015, mine is 61.5"
the local place said they can build me one for about $450 (race ready) steel, aluminum or carbon fiber
Which version will be strong enough for the lead in your foot? Will they custom build you one made of titanium?

$450 isn’t a bad price at all. It’s been a few days so I may have missed your news. Did you ever hear back from the stealership regarding their “oops”?
 

alpha_omega

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Auxillary transmission cooler:

Approx cost for parts and labor to have this installed on my 2007 Yukon.

My cross country tow is coming up and I am getting antsy and wandering if this add on is needed onto my 2007 Yukon?

Here is the tow sheet stats for my VIN rig:

I have installed a Tekonsha brake controller and an Equalizer WDH to assist.

20 foot tandem axle 2021 cargo trailer - dual 3500lb axels exc condition trlr.
empty trailer weight is 3000lbs - will load approx 4000lbs into it.

just 1 person ( me ) in tow vehicle.

If I stop multiple times to allow xmission to cool down can I skip the auxillary cooler?

I have to go over both cascade mtn pass and Rocky mtns 2500 mi tow.

I can take my time and just drive 8 hours a day or less if it helps my tow rig



I wouldn’t skip the cooler or follow the “standard” recommended mileage maintenance schedule. Instead you are going to want to follow the HD/Towing maintenance schedule. Doing so calls for fluid changes more often and will save the life of your vehicle. It’s not going to change the main concerns once you reach a certain mileage, but that won’t change regardless of the vehicle you’re driving.
 

Doubeleive

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Which version will be strong enough for the lead in your foot? Will they custom build you one made of titanium?

$450 isn’t a bad price at all. It’s been a few days so I may have missed your news. Did you ever hear back from the stealership regarding their “oops”?
I left on my trip with it, I get a slight vibration around 70~85 but can only feel it on certain surfaces and the slip yoke feels weird. Feels like the rear end is dropping on acceleration from a stop sometimes and I can feel it sometimes when braking and accelerating. So I will probably just have one made or order one when I get back
 

alpha_omega

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My coolant temp occasionally goes to 199 degrees, used to stay at 192-194..
Temp comes down within a minute or two after hitting 199. I am thinking this could be one or both things..

1. new thermostat is sticky, it's a new stock GM one..
2. head gasket leak near temp sender (still smelling coolant, think the hissing sound I heard was the AC pressue equalizing, had an ear infection that blew out my timpanic membrane so I'm listening with one ear)

Certainly smell coolant from the exhaust, and the exhaust pipe which was always pure black, seems to have a crusty tan layer on the edge.

Have noticed a little bit of coolant loss in about 150-200 miles of driving.. (was middle of line, now it's a hair under)

Thinking about taking a nearly 2000 mile roadtrip.. Thinking I better do a headgasket first..
Any recommendations on headgasket (will stick with stock GM unless there is a better one) and other necessary procedures? (skimming head?)
So far I'm planning on new lifter guides, headbolts, intake/exhaust gaskets. Check tightness on vlom.. Just want to do the basics to get this sealed up and running as quickly as possible..
If you have a digital temp gauge, you can drop your thermostat into a pot of boiling water to test whether it’s working properly or not. The OEM ones are usually pretty cool proof, but that doesn’t mean it’s not sticking for whatever reason.

You can’t go wrong with Fram or GM OEM. For head bolts I would Go with ARP. You can go with chrome or black, six point or eight(?). Whatever the other standard is for heads. Intake I went with Fram as well and the exhaust I stuck with OEM because they had a better design than what I could get without waiting several days.
 

alpha_omega

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Walking up to my workshop this morning I see this, which is a bit of a shock to me since my Denali sat up here for the better part of two years. Granted I’m the one who pulled my tractor into the barn last night so I could grease it up this morning, but it was still a surprise to see this green beast instead of my Denali or an empty space.

IMG_3206.jpeg
And damn is he getting big. At just over four months, he weighs more than my wife’s dog and she’s a year and a half old. He jacked his posts up while sleeping last night so I had to cut out the middle brace this morning.
IMG_3204.jpeg

Now lets go make some braided -6 AN trans cooler lines!
 

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