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

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Charlie207

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K5L is the top end cooling system that includes 700w fan motors instead of the usual 500w, which makes it better for pulling a heavy trailer in hot weather, etc. Not all towing packages come with the K5L. For example, my 2012 XL Denali has the trailering package so it has the integrated brake controller and both engine oil and transmission fluid coolers, but it doesn't have the K5L package so it didn't come with the 700w fans.

Here is my build sheet, are there any other goodies I should be aware of?

8fnyXWD.jpg
 

swathdiver

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Here is my build sheet, are there any other goodies I should be aware of?

View attachment 362780
That rig is set up for maximum towing, G80 locker, 3.42 gears and the K5L HD cooling package. KC4 is for the engine oil cooler, KNP for the external transmission cooler.

You have the iron block LMG 5.3 motor, the MP3023 transfer case. Plain jane suspension ZW7, just regular shocks and springs, no auto level or air compressors or air shocks.

6PB and 7PB are your front strut codes.

Tow rating is 8,200 pounds, GCWR is 14,000 pounds. GM did something weird or made an error, my 2009s WD hitch rating is 1000 pounds. From 2010-2012, it was increased to 1100 pounds and back to 1000 for the last two years. I've seen no physical difference but am no expert either, might have missed a reinforcement or something.
 

Charlie207

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You can get a build sheet from GM for free, but looks like yours is nicely equipped. https://www.vindecoderz.com/EN/check-lookup/1GKS2CE01ER132205

Thanks for sharing, I was searching on several other VIN-decoder websites, and they all seemed to have incorrect info. EX: the others said I had the 3.08 rear end. It's ironic because basically any website that ends in xxxxz.com reminds me of the shady places I allegedly checked out back when dial-up modems were the norm.
 

Charlie207

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That rig is set up for maximum towing, G80 locker, 3.42 gears and the K5L HD cooling package. KC4 is for the engine oil cooler, KNP for the external transmission cooler.

You have the iron block LMG 5.3 motor, the MP3023 transfer case. Plain jane suspension ZW7, just regular shocks and springs, no auto level or air compressors or air shocks.

6PB and 7PB are your front strut codes.

Tow rating is 8,200 pounds, GCWR is 14,000 pounds. GM did something weird or made an error, my 2009s WD hitch rating is 1000 pounds. From 2010-2012, it was increased to 1100 pounds and back to 1000 for the last two years. I've seen no physical difference but am no expert either, might have missed a reinforcement or something.

I did notice that the rear shocks have been upgraded to Bilstein 5100s, and still look/feel to be in good shape. The front struts are generic units, and I'll upgrade those to 5100s whenever they fail. They feel pretty good though, so I hope it takes a while.
 

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