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  1. Geotrash

    Engine mount

    Most of us go with the mount for the H3 Hummer V8: https://a.co/d/0dxxYs9k Not quite as smooth as the fluid filled factory mount but it'll be the last time you ever have to replace it. My notes from when I did the driver's side: 1/ I separated the steering shaft. It was a pain to do and took...
  2. Geotrash

    Interested in beefing up my Suburban

    Also, congrats on the ranch! Where in ND? I spent many years working all around the state on drilling rigs (petroleum geologist), from Bowman, to Dickinson, and all the way to Bowbells. Y'all get some serious winters up there, or at least you used to. :p I used to say it keeps the riffraff out.
  3. Geotrash

    2010 Yukon Denali Overheating when Towing

    More rows after 2 do not increase cooling capacity, surprisingly. I tow at the max with my 2012 over the mountains all summer long in the heat, with a modified 6.2L. I had a Cold Case in it for 3 years, but like all of them, it sprung a leak this spring. I replaced it with a new Denso (OEM) with...
  4. Geotrash

    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!

    Glad to hear it's still running well for you! Thanks for checking back in.
  5. Geotrash

    Interested in beefing up my Suburban

    I think you can safely delay the transmission rebuild. The main problem with the 6L80 in a 2011 Burb lies with the torque converter's lockup clutch, which is stressed to an additional degree with the operation of the AFM system as it switches modes. When it fails, is sends debris through the...
  6. Geotrash

    Proper DoD delete oil pump

    FWIW, the aluminum engines should really get the high volume pump. I have the Melling HV in mine as well, and see 50 on cold startup, 15-20 at idle and 45 when towing hot.
  7. Geotrash

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

    Not bad. $165 for a Dorman replacement through Scamazon and in this case, the Dorman is a quality part.
  8. Geotrash

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

    I love me some forward-thinking preventative maintenance! Well done. I was kicking myself this weekend for not replacing the suspension compressor 2 years ago when I did the rear shocks.
  9. Geotrash

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

    I'm glad it went well for you! This weekend was my first real test of that radiator over a long haul (7.5 hour) tow through the mountains in 93ºF ambient temps. It did great! Very happy with the results. Unfortunately, the rear suspension compressor took a dump on the drive home today, so I...
  10. Geotrash

    L86 gen 5 lifter kit

    Hit me up if you do. Happy to help if I'm able.
  11. Geotrash

    Chevrolet Suburban 3500 Questions

    No need to apologize. But yes, I have had conversations about that topic and I know others here have spoken about it too. I don't think I would have said "should" about towing near/at peak TQ/RPM, because there are many factors that play into it. I think it's safe to do so, such as when pulling...
  12. Geotrash

    L86 gen 5 lifter kit

    Yes I am. In Mechanicsville, outside of Richmond. I did the work in my garage. Still running great 25K later.
  13. Geotrash

    Chevrolet Suburban 3500 Questions

    That is generally my towing experience as well, with the 6.2. I can usually accelerate uphill to pass, if needed, if I don’t mind winding it out. Where I was struggling was on a 9% grade trying to hold 55. I could do it but I didn’t want to wind it out that hard, so I held 45. The duramax...
  14. Geotrash

    2010 Yukon Denali Overheating when Towing

    Good call. Update: it was a hot day today as we pulled our 7500 pound camper over the spine of the Appalachian through West Virginia. No problem keeping the engine and transmission cool with our current set up and replacement radiator. Coolant temperature gauge got up to the three-quarter mark...
  15. Geotrash

    Chevrolet Suburban 3500 Questions

    I think your analysis is correct. And I would be completely comfortable towing 12,000 pounds with a 3500 Suburban. That said, I just drove 400 miles today with a 7500 pound camper behind our modified 6.2 L Yukon XL. I have about 460 hp and torque on tap, and we were driving over top of the...
  16. Geotrash

    2010 Yukon Denali Overheating when Towing

    I have a whole thread on this here, in case it's helpful: https://www.tahoeyukonforum.com/threads/keeping-coolant-and-transmission-temps-under-control-when-towing-in-the-summer-heat.125753/post-1562470 Long story short though, as others have said, what you're experiencing is pretty close to...
  17. Geotrash

    Chevrolet Suburban 3500 Questions

    Thank you for starting this thread. My wife and I are looking at heavier campers so I'm also now looking at the Suburban 3500HD. I'm curious about your perceptions of what it's like to drive. How are the ride and handling? Also, it looks like yours is an LT, yes? If so, where did you find it...
  18. Geotrash

    Uneven tire

    An alignment shop will be able to get you a precise answer to what is askew. But I agree with the others here that there is likely frame damage/bent parts.
  19. Geotrash

    Best Dash mat?

    Unfortunately not any good ones. This is all I can find right now without being at home:
  20. Geotrash

    All lights are flickering and voltage is bouncing around

    I'd you bought a reman alternator, that's not uncommon behavior. But with only 71K on it, I'd put the original right back on. Lots of guys here have over 200K on their originals.
  21. Geotrash

    07 Yukon Denali flex fuel conversion

    @iamdub knows the flex fuel system pretty well and might have some insight here. But I believe you'll also need a tune for flex fuel if your ECU can even support it.
  22. Geotrash

    Changing Fuel Pump/Sending unit, Bosch ????

    Looks to be quite a few design differences between those two pumps. FWIW, the original pump on my '07 wasn't labeled Bosch and I replaced it with a GM Genuine pump a few years ago. It's been fine since but I wasn't having fuel level indication problems. I'm curious if you may have developed a...
  23. Geotrash

    Ready to pull trigger on Derale trans cooler - need advice

    Wonderful! Thanks for following up. I think you'll be happy with that setup. The factory engineers knew what they were doing with that system.
  24. Geotrash

    What Would You Do?

    Thanks for following up, and I'm glad you got it out!
  25. Geotrash

    flashing and programming modules for cheap ish

    Thank you for sharing!

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