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  1. alpha_omega

    Want to take my 2010 Yukon XL Denali with 180,000 miles for a family trip from Michigan To Florida - Can you help me make this a success!

    Wishful thinking. Not that I’m disagreeing with your hopefulness, if your trans doesn’t break down, your TCase or Torque Converter will. If you’ve read any of the stuff @NickTransmissions and other mechanics on here have explained, the only problem with going stock GM for everything is the fact...
  2. alpha_omega

    GM 6L80 Transmission Information Thread

    You would think it only did have one with the size coolers that GM put in these big SUV’s. At least the one in my 2020 is bigger than my 2011 and 2002. Your ‘19 burb has the 6L80? Was it 2020 that they changed? Or is that just the difference in the Denali and the 6.2l?
  3. alpha_omega

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

    Merry Christmas and Happy Holidays ladies and gents! I hope you all get some time off to spend with your family or loved ones. Cheers to 2024!
  4. alpha_omega

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

    Michigan requires no inspection (otherwise 60% of the vehicles would probably fail due to the rust belt winters and pothole filled back roads) and my plate/reg has no expiration (100% service connected disabled vet). Otherwise it’s every two (?) years? It used to be annual, but they got lenient...
  5. alpha_omega

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

    Not bad then. Did you go OEM?
  6. alpha_omega

    GM 6L80 Transmission Information Thread

    What are government bailouts?
  7. alpha_omega

    Want to take my 2010 Yukon XL Denali with 180,000 miles for a family trip from Michigan To Florida - Can you help me make this a success!

    That one can be tricky. If you’re lucky it may still have some purchase once the manifold is removed. If not, a welder is needed. Luckily your block is aluminium. If I had to make a gamble, I’d say your manifold isn’t far from cracking in the center. They all do it. In fact it’s such a problem...
  8. alpha_omega

    Want to take my 2010 Yukon XL Denali with 180,000 miles for a family trip from Michigan To Florida - Can you help me make this a success!

    Oh you’re not running a full tank of 85, just five gallons. I missed that part.
  9. alpha_omega

    Broken Motor Mounts

    “Shouldn’t need to” or “probably should anyways” since you're already in there?
  10. alpha_omega

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

    I wish that were the case. We called AAA when a tire blew out on our horse trailer. Despite being on a main 4-lane highway they told us 1-2hours. I was able to get it changed out even with a horse onboard before they called us back with an update (telling us it would be closer the two hour...
  11. alpha_omega

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

    Anyone with new battery suggestions? Im going to replace the original on my father in-laws 2020 Denali (everything is OEM), but I wasnt sure who to go with this time. Delco from the stealership is prob going to cost a fortune compared to even the local AP store “gold”. But ive also heard that...
  12. alpha_omega

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

    How new is that rad? Or has the ‘13 not been replaced yet?
  13. alpha_omega

    Want to take my 2010 Yukon XL Denali with 180,000 miles for a family trip from Michigan To Florida - Can you help me make this a success!

    I could be completely wrong, but you might be better off using an actual injection cleaner to do that job, as opposed to using E85. That’s not to say E85 won’t do the job, I’ve just never used it since I have the 6.2. I’ve always had good luck with Lucas and the ACDelco top end cleaner as well...
  14. alpha_omega

    Want to take my 2010 Yukon XL Denali with 180,000 miles for a family trip from Michigan To Florida - Can you help me make this a success!

    I think this is from @swathdiver if I’m not mistaken. He and I geek out on excel spreadsheets often shared on here and some of the other similar sites. Not having a flex-fuel vehicle, did you have to change your fuel trim info via tech2? While this table is obviously subjective due to the...
  15. alpha_omega

    Broken Motor Mounts

    Do you have AWD or RWD? Which lifting method did you use? Also did you pull the wheel well splash guards and starter motor? Not that it still isn’t a pain in the @$$ to replace (esp that passenger side), but each method has its perks and the different drive styles play a role as well. Edit: I...
  16. alpha_omega

    Advice needed, Stabilitrack and Passenger Airbag lights

    If you disconnect the battery, technically no. However if things got messed up due to someone’s negligence; similar to the rookie mistake of broken clock springs (by not properly securing the steering wheel), then yes, a calibration may be required via Tech2 or similar scanner.
  17. alpha_omega

    (cont) new stock z55 suspension mysteries

    Awww $h*t, what now? Hooking up those trailer wires you cut and that rear [bumper] grounding wire didn’t fix your problem? Did you ever end up installing a new suspension control module? If your body is that rotted, I wouldn’t be surprised if it’s bad. I’ve seen them “communicate” with a...
  18. alpha_omega

    6L80 Transmission Rebuild - No Movement

    No. This won’t cause all of your other issues. You NEED to perform the relearn procedure before doing anything. It’s a two part procedure. After that, scan again for codes. Additionally, after having driven for a couple days then scan again for codes if things have not evened out properly.
  19. alpha_omega

    Transmission Issues

    What upgrades/updates have you done to the tranny since purchasing it?
  20. alpha_omega

    Want to take my 2010 Yukon XL Denali with 180,000 miles for a family trip from Michigan To Florida - Can you help me make this a success!

    @swathdiver and a couple of the other guys dabble in the different grades. Maybe they can chime in.
  21. alpha_omega

    GM 6L80 Transmission Information Thread

    A reminder to players, please phrase your answers in the form of a question. This one goes to you Lex for five-hundred: “All stock 6L80’s should have had this Sonnax kit installed for free by General Motors after turning over 50k on the odometer”
  22. alpha_omega

    Want to take my 2010 Yukon XL Denali with 180,000 miles for a family trip from Michigan To Florida - Can you help me make this a success!

    With a 6.2 in the Denali all I’ve ever run in her is premium. So I can’t begin to talk on the E85 topic. I run non-ethanol in my lawn equipment or a premium mix if I can’t find non-eth, but that’s about as far as my experience goes with the different grades of fuel.
  23. alpha_omega

    GM 6L80 Transmission Information Thread

    My man…I’m not trying to take sides here, so don’t read into this reply in that way. I’m coming at it from an outsider. Everyone here is. None of us are in your shoes and vice versa. You asking @NickTransmissions for advice is exactly what this site and sites like it are for - to share the...
  24. alpha_omega

    3rd row seat removal Premier Edit:deck added

    I like the felt idea. Hopefully I can find some to match the tan color on the 2020 Denali. The countersunk d-rings are what I planned on using. I installed some of them in my work trailer, so I have a few left over. Our plan is to tow the Denali behind the motorhome and put a cricket golf cart...
  25. alpha_omega

    Can anyone with a 2nd row bench seat 2021-3 Tahoe pull Trim part numbers for me?

    Have you checked the GMpartsdirect.com website? You can enter your vehicle info and search for all of the p/n’s you're looking for, they are even broken down by interior color as well.

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