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  1. TheAutumnWind

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

    Decided the passenger side looked dirty and ocd took over...
  2. TheAutumnWind

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

    Changing out the old valve cover to the updated pcv style. Did not take much time.
  3. TheAutumnWind

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

    I have some. They help. Worth a few extra dollars than putting in stock type replacements.
  4. TheAutumnWind

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

    So I've resealed the hydroboost twice now. Still leaks. Any tips or tricks? Maybe I'm just buying the wrong seal kit?
  5. TheAutumnWind

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

    definitely do the Vette servo. Easy $20 mod. If it leaks that bad it could be on its way out...
  6. TheAutumnWind

    Oil Leak Help

    went ahead and ordered one for good measure
  7. TheAutumnWind

    Oil Leak Help

    Sonofabitch. Its not the rear main. There is moisture on the back of drivers side head. Yhis may be my leak after all
  8. TheAutumnWind

    Oil Leak Help

    Hmm I wonder if this is my issue on my 05? Seems like an easier fix than a rear main seal which is what I have assumed for some time now.
  9. TheAutumnWind

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

    That's true. Could have stuck a bolt in the hole and clamped it or something.
  10. TheAutumnWind

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

    Yeah unfortunately there does not seem to be any great solution here. There are a lot of plastic fittings with o ring seals just waiting to fail here and ruin someones day. I had one go out on me in the santa cruz hills with no cell service. Luckily i had a case of water in the trunk and was...
  11. TheAutumnWind

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

    thanks! Those do not eliminate the extra quick connects. I've seen that billet Ts are available for like$80 each. I replaced the white T and black quick disconnect with gm oem parts. I swear I've done these before on this truck. I know I did them on my Denali.
  12. TheAutumnWind

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

    This is the dumbest assembly. Anyone delete the black quick connects? Seems like an unnecessary failure point
  13. TheAutumnWind

    AC not blowing cold at idle

    if the truck is up to operating temps and you are sitting idling for awhile and its warm enough to run a/c you should hear that thing sucking air imo. If you think the clutch fan is good then get gauges and tell us the reading. They are like $50. If your pressures are good then aux fan is an...
  14. TheAutumnWind

    AC not blowing cold at idle

    There is always the auxiliary fan option...
  15. TheAutumnWind

    AC not blowing cold at idle

    Clutch fans can potentially move more air than electric. The clutch may be ready to be replaced. OP can you hear your fan at idle? It should be pulling enough air to for it to be plenty noticeable if its warm enough that you need to run A/c. Otherwise get some gauges and check the pressure in...
  16. TheAutumnWind

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

    Interesting. My on my GMT400 that was not the case.
  17. TheAutumnWind

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

    Ah. Non issue for me in Bay Area California.
  18. TheAutumnWind

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

    What would the advantage of that be?
  19. TheAutumnWind

    Better Radiator?

    I'm sure there is am acdelco equivalent to the radiator I posted. Probably just have to cross reference part numbers. Here is the one on the 454 trucks. There are some for the HD trucks that are 34x20x2ish that I believe may be too tall for the 1500 trucks. The one I installed is Height...
  20. TheAutumnWind

    Better Radiator?

    My 28x1" rad compared to new 34x2"and a pic of it in the truck. And a pic of the acdelco cooler on my escalade
  21. TheAutumnWind

    Better Radiator?

    tru cool 40k is likely the best bang for buck. https://www.performancetrucks.net/forums/gm-drivetrain-suspension-22/tru-cool-40k-gvw-transmission-cooler-install-thread-470284/ But really anything would be an improvement. I ran a Hayden 679 on my old (nbs) Denali...
  22. TheAutumnWind

    Better Radiator?

    I started with the 28" so there was a little more work for me, but if you already have a 34" it just bolts right in. The end tanks and thus the mounts are identical. Just a thicker core
  23. TheAutumnWind

    What 20” tires are you running

    I have these on the escalade. Great street tire. Improved ride and grip over the bridgestone duelers. Only 40k mile warranty, but they were like ~$130/tire @ Americas/Discount tire. https://www.tirerack.com/tires/tires.jsp?tireMake=Hankook&tireModel=Ventus+ST+RH06&partnum=755VR0RH06XL
  24. TheAutumnWind

    Better Radiator?

    DO you have the 34" wide 2" thick radiator? I know that the 34x1" is common for the 5.7 1500s This is the one I replaced my 28" 1" thick rad with. https://www.amazon.com/gp/product/B000C7VZGY/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1#customerReviews It is a factory replacement for an HD...
  25. TheAutumnWind

    Vibrations at idle

    Cylinder deactivation? My 2015 work truck sure seems to run less smooth in V4 mode.

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