max tow package
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HD towing package on my 2017 - transmission replaced - does HD part# matter?
just had the 6L80 replaced with a rebuilt.... 120k miles. Our 4WD 2017 has the HD tow package (RPO code: NHT)... my understanding is the 6L80 tansmission is actually a different part number than the standard 6L80. I'm not sure the difference, but seems to me it's the cooling fluid is routed...- ers37
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- 6l80 6l80 transmission max tow package
- Replies: 12
- Forum: Engine & Drivetrain
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2021 Denali (Yukon XL) Transmission cooler standard?
Hello - been scouring the forums and found lots of useful info. Been looking for a 2021 plus yukon XL with towing package or 3.0 diesel and they are very hard to come by. I'm find some conflicting info surrounding the tow packages. Looking to clear up if the transmission cooler is actually...- keg8605
- Thread
- max tow package transmission cooler
- Replies: 3
- Forum: Engine & Drivetrain
