2004 Yukon XL Denali 6.0 AWD Gearbox
- Thread starter schimme
- Start date
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Show us your RPO codes from the glovebox, or post up all of the Mxx codes that are on that sticker.
Marky Dissod
Full Access Member
MD8 = 700R4 / 4L60 (no 'E')
M30 = 4L60E
M32 = 4L65E (Heavy Duty)
M70 = 4L70E (Super Duty) (somebody with a TrailBlazer SS, please check their RPOs?)
MT1 = 4L80E
MN8 = 4L85E (Heavy Duty)
MYC = 6L80E
MYD = 6L90E (Heavy Duty)
M5U = 8L90E
MQE = 8L90E with 'improvements'
MF6 = 10L80E
MX0 = 10L90E
Please take note of Fless' corrections below.
M30 = 4L60E
M32 = 4L65E (Heavy Duty)
M70 = 4L70E (Super Duty) (somebody with a TrailBlazer SS, please check their RPOs?)
MT1 = 4L80E
MN8 = 4L85E (Heavy Duty)
MYC = 6L80E
MYD = 6L90E (Heavy Duty)
M5U = 8L90E
MQE = 8L90E with 'improvements'
MF6 = 10L80E
MX0 = 10L90E
Please take note of Fless' corrections below.
Last edited:
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