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  1. Y

    8L90 Valve body back order?

  2. Y

    8L90 Valve body back order?

    Hey everyone, I’m currently waiting on a valve body replacement for my 2017 Yukon XL Denali (6.2L, 8L90) at a GM dealership. I’ve been told the valve body is on national backorder, but I’m not getting a clear ETA or much detail beyond that. I’m trying to see if anyone here has recently...
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    2017 Yukon XL Denali V8 6.2L 8L90 Transmission or Rear End?

    Thank you!
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    2017 Yukon XL Denali V8 6.2L 8L90 Transmission or Rear End?

    I appreciate all the advice! Here is a picture of my Yukon
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    2017 Yukon XL Denali V8 6.2L 8L90 Transmission or Rear End?

    My husband said to never use it, to treat it as our old Chevy 1500 with selectable 4WD, to keep it in 2WD and only go into 4WD when needed and only use 4LOW if I’m stuck. So thank you!
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    2017 Yukon XL Denali V8 6.2L 8L90 Transmission or Rear End?

    I really appreciate it I will see if we can do this procedure and let you know, I’m really hoping it’s not a transmission or a rear end.
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    2017 Yukon XL Denali V8 6.2L 8L90 Transmission or Rear End?

    Have you seen this issue before?
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    2017 Yukon XL Denali V8 6.2L 8L90 Transmission or Rear End?

    Hello, I am looking for advice. I have a 2017 Yukon XL, with selectable 4WD I just purchased it not long ago. It currently has 87,639miles on it. I am trying to figure out if it is my transmission kicking or my rear end when changing gears; you can feel a clunk when your foot is on the break and...

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