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  1. Mudsport96

    Pads to go with Raybestos R-300 rotors

    If by soft you mean spongey, you may need new rubber lines or braided stainless lines.
  2. Mudsport96

    Engine Revs up and down at 35 to 40 mph

    Also just found this file is for a vehicle with 3.73 gears. So if you have something other, it could be a few mph either way.
  3. Mudsport96

    Engine Revs up and down at 35 to 40 mph

    So if you throttle position in 4th gear is 30 percent to 35 percent between 32 and 48 mph it will kick down from 4th to 3rd so that could be it And I don't think leaving it in tow haul will help, as the 2>3 shift doesn't happen in tow haul until 36mph at moderate throttle. So that will cause...
  4. Mudsport96

    Engine Revs up and down at 35 to 40 mph

    I can look at the program again after work tomorrow, but usually the tow/haul bumps the 2>3 shift pretty high. So it may not even be in 3rd by that time. I always reserve the right to be wrong without checking to be sure though. Lol
  5. Mudsport96

    Is This Okay to Use?

    Yeah, no mountains near me. Middle of the Midwest. But, occasionally hit up Rifle, Colorado for elk hunting. Dragging a cow elk at 5000+ elevation is no joke, and not for the faint hearted.
  6. Mudsport96

    Is This Okay to Use?

    Mountains don't count lol
  7. Mudsport96

    Engine Revs up and down at 35 to 40 mph

    It Shouldn't do it. And it really isn't an issue technically, it is just doing what the program is telling it too do. If you could get a video of what you are experiencing, we could better diagnose this.
  8. Mudsport96

    Engine Revs up and down at 35 to 40 mph

  9. Mudsport96

    Engine Revs up and down at 35 to 40 mph

    Okay so this is for a 6.0 4l65e vehicle with awd as far as I van tell from the tune. So either an awd Denali or a Silverado SS. Either tune should be close to the other as they are the same basic drivetrain. I will post pictures, but from what I see in the tune, part throttle 3rd to 4th shift...
  10. Mudsport96

    Engine Revs up and down at 35 to 40 mph

    You can push it any time.
  11. Mudsport96

    Engine Revs up and down at 35 to 40 mph

    This is true. I am not sure if I have a Denali program I can look at on hand. But I do have several random ones. If I get time tonight or tomorrow after work I will see what I can find on the shift schedule tables.
  12. Mudsport96

    Engine Revs up and down at 35 to 40 mph

    I am going to go with, Try driving the route you have the problem the most with this issue. BUT, have the shifter in manual 3rd gear. I think you may , like a few others have said, be in the either 3-4 shift range ( which SHOULD be more than a couplehundred rpm). Or, the tcc lock-unlock range...
  13. Mudsport96

    2002 Tahoe LT 2wd

    I fat finger the phone all the time. Welcome
  14. Mudsport96

    I Sank my 2003 Z71 Tahoe

    Yeah, so what rpm was she turning when you went swimming? If it was at idle, she MIGHT be okay. I drown a 4.3 years ago that just needed a good drain and dry. Also killed a 302 that was at full song when the nose dipped.... yeah, liquids don't reasonably compress. It may just be water in the...
  15. Mudsport96

    05 Tahoe rear diff issue

    Where do you line that it is 400 bucks to do ujoints?
  16. Mudsport96

    03 Suburban LM7 5.3 Blackbear tuned 0-60 video Magnaflow Muffler Vibrant Resonator exhaust sound AFE CAI Intake

    That is not bad for the altitude and the tire size being larger than factory
  17. Mudsport96

    Is This Okay to Use?

    Well, I guess it is up to your discretion then. Personally, I would use it and not look back. But to each their own ya know.
  18. Mudsport96

    Is This Okay to Use?

    It will be fine. You are in California so the low is what? 45 degrees? The 75w vs the 80w is cold weather stability/viscosity. If you were living where it got below freezing much i would say not to use it, but if you dont see freezing temperatures the 80 is fine. Hell ive run 85-140 in my truck...
  19. Mudsport96

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

    Drinking coffee looking at the dent and scuff my wife put in the front bumper. She was "trying to get close to the drive-thru garbage can" and hit the cement pole.... The one time I wish I had the chrome bumper instead of body colored... Bermuda blue match won't be fun.
  20. Mudsport96

    03 Tahoe first mod

    Ooff!
  21. Mudsport96

    03 Tahoe first mod

    So how did the pan get smashed?
  22. Mudsport96

    Strange noise

  23. Mudsport96

    Got PO300 code

    I love this saying.
  24. Mudsport96

    Got PO300 code

    Over 400k on the original cats here. But always maintained so they are good. Perhaps the OP had another issue that killed cats and may happen again. Or, his crank sensor is flaky and is okay at idle but bad above that. Hopefully, he gets back to us after the parts replacement.
  25. Mudsport96

    Mod planning

    No argument man just putting information out for people to take into consideration. "Here are my thoughts and the data to back it up" not arguing. Yes. An engine that requires more air flow than a 5.3 by nature of being a larger displacement alone... if they can support that then they will do...

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