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

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Tonyrodz

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@ the junkyard as we speak and came across this. Does anybody know if this is factory. Please respond back asap

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Thought you were talking about that tire as a spare. Do it--did mine.
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Scottydoggs

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my tahoe dont get out much, but today it did a 200 mile round trip. had to have a friend follow me in it so i could drop off my camaro at the hot rod shop for dod delete to ls3, cam and header install. this will be a long ass week waiting for it to be done. might take longer if we dont get a warmish day so it can be tuned.
 

lowpost99

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get a bottle of blue devil, flush the coolant, dump that stuff in, drain 1/2 and add new coolant. i used it in old old engine that was just eating coolant. it stopped eating it, but if you flush the coolant out so does the blue devil and it starts to eat coolant again. its a clear thin liquid, not tar. i took that engine apart after i blew it up. saw nothing bad from the BD. ps only reason i did a coolant flush was cause of years used, so it held up for like 4 years or so. till the flush, then i had to add more and it stopped asap once again.
Before you use the Blue Devil, get your oil tested for water, the silicate in the BD will lock your motor up if you have any water/coolant in there. Also in addition to the drain recommended, remove your thermostat until finished and then put it back after the engine cools. If your oil tests for water, you can try BAR Copper Block Seal which works with all coolant types and see if that seals you up for a while. You can get the test kit at Napa Auto parts or Oreily's part # is 5077 if I recall, and it's only $15. That's a lot less than a locked up motor.
 

HiHoeSilver

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Oil change with Shell Rotella Gas Truck 5w30 and NAPA 1522 filter. 105,000 on the clock. Checked other fluids and topped off the WW fluid.

EDIT: took a sample for Blackstone, once the mailer arrives.

First rotella change? Or was the sample you sent Rotella as well?
 

Fless

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First rotella change? Or was the sample you sent Rotella as well?

First Rotella change, and this will be my first sample. I ordered the mailer the other day and it should be here in a week or so. The oil I drained is syn blend, unknown brand, done by a local shop while I had some other work done about 5K miles ago. Had a NAPA Gold filter on it, they do good work. But I wanted to get a baseline for future analyses.
 

Sam Harris

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Turned the stock keys 2 more turns passenger side, and 3 more driver side. Now between 36.5-37” from ground to wheel well lip on all 4 corners. Replaced jounce stops with new ones, but the energy suspension spacers I bought are too tall, so returning those for 1/4” spacers. Replaced just pads on the front brakes, since I’ll be doing the NNBS brake upgrade after I wear out my tires. Added BG ATC Plus to the transmission, hoping to get enough out of it while I save for my swap.. Alignment tomorrow..
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