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

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Bowzer

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Smoked the 4L60 today :(. Pullin it out next week to have it rebuilt stronger and 6.0 liter ready. 134.000 rebuilt under warranty at 20,000.
 

jcevans7

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Gave her a bath and put on the Escalade rear appliques. Just plastidipped them black for now. May color match them later.
View attachment 61606 View attachment 61607
What kind of module did you use for your steering wheel. Putting in a new radio soon want to keep them but also reprogram my onstar. Looks good btw

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donovandavis

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Put some gas in her for less than a cent a gallon for 93 octane... Highly recommend joining Shell fuel rewards program.
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donovandavis

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Smoked the 4L60 today :(. Pullin it out next week to have it rebuilt stronger and 6.0 liter ready. 134.000 rebuilt under warranty at 20,000.
That sucks! Still waiting for my 65 to bite it with 180k but still going somehow. Did you have any major power adders that may have shortened the lifespan?
 

Bowzer

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That sucks! Still waiting for my 65 to bite it with 180k but still going somehow. Did you have any major power adders that may have shortened the lifespan?

No major mods, basically intake and exhaust.

Last week I changed the shift programming for +5 mph and have been racing around on a tank of 100 octane. Probably didn't help the tranny but catalytic code(p0420) stopped coming up!

Yeah it sucks, I was about to change the cats out and do a custom Black Widow exhaust. On hold for now.
 

Rocket Man

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No major mods, basically intake and exhaust.

Last week I changed the shift programming for +5 mph and have been racing around on a tank of 100 octane. Probably didn't help the tranny but catalytic code(p0420) stopped coming up!

Yeah it sucks, I was about to change the cats out and do a custom Black Widow exhaust. On hold for now.
Maybe your programmer is to blame. What are you using? I've heard of guys blowing up not just their tranny but engines as well due to tuning. That's one of the reasons I went with Black Bear.
 

Bowzer

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Maybe your programmer is to blame. What are you using? I've heard of guys blowing up not just their tranny but engines as well due to tuning. That's one of the reasons I went with Black Bear.

I was thinking the same. It's an older hyper tech programmer.
 

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