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GMC Sierra HD Transmission Information in Quick-to-Read Graphs

Average transmission load (Nm)

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Quick notes on GMC Sierra HD transmission

    • Drive: All wheel drive (4x4)
    • Gearbox construction: Automatic
    • Transmission type: 6 AT
    • Average optimal engine speed: 4100 rpm
    • Average torque: 875 Nm

Gearbox types in 2018 GMC Sierra HD through generations

  • 2500 6.0 V8 —6 AT (515 Nm)
  • 2500 6.6 TD V8 —6 AT (1234 Nm)
  • 3500 6.0 V8 —6 AT (515 Nm)
  • 3500 6.6 TD V8 —6 AT (1234 Nm)

    • Optimal engine speed at last gear

  • 2500 6.0 V8 6 AT—5400 rpm.
  • 2500 6.6 TD V8 6 AT—2800 rpm.
  • 3500 6.0 V8 6 AT—5400 rpm.
  • 3500 6.6 TD V8 6 AT—2800 rpm.

    • Vehicle Transmission type Gears Drive type Optimal rpm Transmission efficiency
    2500 6.0 V8 Automatic 6 AT All wheel drive (4x4) 5400 rpm. 69%
    2500 6.6 TD V8 Automatic 6 AT All wheel drive (4x4) 2800 rpm. 96%
    3500 6.0 V8 Automatic 6 AT All wheel drive (4x4) 5400 rpm. 69%
    3500 6.6 TD V8 Automatic 6 AT All wheel drive (4x4) 2800 rpm. 96%
    Vehicle 2500 6.0 V8
    Transmission type Automatic
    Gears 6 AT
    Drive type All wheel drive (4x4)
    Optimal rpm 5400 rpm.
    Transmission efficiency 69%
    Vehicle 2500 6.6 TD V8
    Transmission type Automatic
    Gears 6 AT
    Drive type All wheel drive (4x4)
    Optimal rpm 2800 rpm.
    Transmission efficiency 96%
    Vehicle 3500 6.0 V8
    Transmission type Automatic
    Gears 6 AT
    Drive type All wheel drive (4x4)
    Optimal rpm 5400 rpm.
    Transmission efficiency 69%
    Vehicle 3500 6.6 TD V8
    Transmission type Automatic
    Gears 6 AT
    Drive type All wheel drive (4x4)
    Optimal rpm 2800 rpm.
    Transmission efficiency 96%

    Quick notes on GMC Sierra HD transmission

      • Drive: All wheel drive (4x4)
      • Gearbox construction: Automatic
      • Transmission type: 6 AT
      • Average optimal engine speed: 4100 rpm
      • Average torque: 875 Nm
      • Weight to torque ratio: 4 kg to 1 Nm
      • Average weight: 3117 kg / 6873 lbs
      • Maximum load for transmission: 4512 kg / 9949 lbs
      • Gearboxy rating: 10 / 10

    Gearbox types in 2018 GMC Sierra HD through generations

  • 2500 6.0 V8 —6 AT (515 Nm)
  • 2500 6.6 TD V8 —6 AT (1234 Nm)

    • Optimal engine speed at last gear

  • 2500 6.0 V8 6 AT—5400 rpm.
  • 2500 6.6 TD V8 6 AT—2800 rpm.

    • Vehicle Transmission type Gears Drive type Optimal rpm Transmission efficiency
    2500 6.0 V8 Automatic 6 AT All wheel drive (4x4) 5400 rpm. 69%
    2500 6.6 TD V8 Automatic 6 AT All wheel drive (4x4) 2800 rpm. 96%
    Vehicle 2500 6.0 V8
    Transmission type Automatic
    Gears 6 AT
    Drive type All wheel drive (4x4)
    Optimal rpm 5400 rpm.
    Transmission efficiency 69%
    Vehicle 2500 6.6 TD V8
    Transmission type Automatic
    Gears 6 AT
    Drive type All wheel drive (4x4)
    Optimal rpm 2800 rpm.
    Transmission efficiency 96%

    Quick notes on GMC Sierra HD transmission

      • Drive: All wheel drive (4x4)
      • Gearbox construction: Automatic
      • Transmission type: 6 AT
      • Average optimal engine speed: 4100 rpm
      • Average torque: 875 Nm
      • Weight to torque ratio: 4 kg to 1 Nm
      • Average weight: 3280 kg / 7232 lbs
      • Maximum load for transmission: 4765 kg / 10507 lbs
      • Gearboxy rating: 10 / 10

    Gearbox types in 2018 GMC Sierra HD through generations

  • 2500 6.0 V8 —6 AT (515 Nm)
  • 3500 6.0 V8 —6 AT (515 Nm)
  • 2500 6.6 TD V8 —6 AT (1234 Nm)
  • 3500 6.6 TD V8 —6 AT (1234 Nm)

    • Optimal engine speed at last gear

  • 2500 6.0 V8 6 AT—5400 rpm.
  • 3500 6.0 V8 6 AT—5400 rpm.
  • 2500 6.6 TD V8 6 AT—2800 rpm.
  • 3500 6.6 TD V8 6 AT—2800 rpm.

    • Vehicle Transmission type Gears Drive type Optimal rpm Transmission efficiency
    2500 6.0 V8 Automatic 6 AT All wheel drive (4x4) 5400 rpm. 69%
    3500 6.0 V8 Automatic 6 AT All wheel drive (4x4) 5400 rpm. 69%
    2500 6.6 TD V8 Automatic 6 AT All wheel drive (4x4) 2800 rpm. 96%
    3500 6.6 TD V8 Automatic 6 AT All wheel drive (4x4) 2800 rpm. 96%
    Vehicle 2500 6.0 V8
    Transmission type Automatic
    Gears 6 AT
    Drive type All wheel drive (4x4)
    Optimal rpm 5400 rpm.
    Transmission efficiency 69%
    Vehicle 3500 6.0 V8
    Transmission type Automatic
    Gears 6 AT
    Drive type All wheel drive (4x4)
    Optimal rpm 5400 rpm.
    Transmission efficiency 69%
    Vehicle 2500 6.6 TD V8
    Transmission type Automatic
    Gears 6 AT
    Drive type All wheel drive (4x4)
    Optimal rpm 2800 rpm.
    Transmission efficiency 96%
    Vehicle 3500 6.6 TD V8
    Transmission type Automatic
    Gears 6 AT
    Drive type All wheel drive (4x4)
    Optimal rpm 2800 rpm.
    Transmission efficiency 96%

    Quick notes on GMC Sierra HD transmission

      • Drive: All wheel drive (4x4)
      • Gearbox construction: Automatic
      • Transmission type: 6 AT
      • Average optimal engine speed: 4100 rpm
      • Average torque: 875 Nm
      • Weight to torque ratio: 4 kg to 1 Nm
      • Average weight: 3293 kg / 7261 lbs
      • Maximum load for transmission: 4778 kg / 10535 lbs
      • Gearboxy rating: 10 / 10

    Gearbox types in 2018 GMC Sierra HD through generations

  • 3500 6.6 TD V8 —6 AT (1234 Nm)
  • 2500 6.0 V8 —6 AT (515 Nm)
  • 2500 6.6 TD V8 —6 AT (1234 Nm)
  • 3500 6.0 V8 —6 AT (515 Nm)

    • Optimal engine speed at last gear

  • 3500 6.6 TD V8 6 AT—2800 rpm.
  • 2500 6.0 V8 6 AT—5400 rpm.
  • 2500 6.6 TD V8 6 AT—2800 rpm.
  • 3500 6.0 V8 6 AT—5400 rpm.

    • Vehicle Transmission type Gears Drive type Optimal rpm Transmission efficiency
    3500 6.6 TD V8 Automatic 6 AT All wheel drive (4x4) 2800 rpm. 96%
    2500 6.0 V8 Automatic 6 AT All wheel drive (4x4) 5400 rpm. 69%
    2500 6.6 TD V8 Automatic 6 AT All wheel drive (4x4) 2800 rpm. 96%
    3500 6.0 V8 Automatic 6 AT All wheel drive (4x4) 5400 rpm. 69%
    Vehicle 3500 6.6 TD V8
    Transmission type Automatic
    Gears 6 AT
    Drive type All wheel drive (4x4)
    Optimal rpm 2800 rpm.
    Transmission efficiency 96%
    Vehicle 2500 6.0 V8
    Transmission type Automatic
    Gears 6 AT
    Drive type All wheel drive (4x4)
    Optimal rpm 5400 rpm.
    Transmission efficiency 69%
    Vehicle 2500 6.6 TD V8
    Transmission type Automatic
    Gears 6 AT
    Drive type All wheel drive (4x4)
    Optimal rpm 2800 rpm.
    Transmission efficiency 96%
    Vehicle 3500 6.0 V8
    Transmission type Automatic
    Gears 6 AT
    Drive type All wheel drive (4x4)
    Optimal rpm 5400 rpm.
    Transmission efficiency 69%

    Quick notes on GMC Sierra HD transmission

      • Drive: All wheel drive (4x4)
      • Gearbox construction: Automatic
      • Transmission type: 6 AT
      • Average optimal engine speed: 4100 rpm
      • Average torque: 875 Nm
      • Weight to torque ratio: 4 kg to 1 Nm
      • Average weight: 3216 kg / 7091 lbs
      • Maximum load for transmission: 4656 kg / 10266 lbs
      • Gearboxy rating: 10 / 10

    Gearbox types in 2018 GMC Sierra HD through generations

  • 2500 6.0 V8 —6 AT (515 Nm)
  • 3500 6.0 V8 —6 AT (515 Nm)
  • 3500 6.6 TD V8 —6 AT (1234 Nm)
  • 2500 6.6 TD V8 —6 AT (1234 Nm)

    • Optimal engine speed at last gear

  • 2500 6.0 V8 6 AT—5400 rpm.
  • 3500 6.0 V8 6 AT—5400 rpm.
  • 3500 6.6 TD V8 6 AT—2800 rpm.
  • 2500 6.6 TD V8 6 AT—2800 rpm.

    • Vehicle Transmission type Gears Drive type Optimal rpm Transmission efficiency
    2500 6.0 V8 Automatic 6 AT All wheel drive (4x4) 5400 rpm. 69%
    3500 6.0 V8 Automatic 6 AT All wheel drive (4x4) 5400 rpm. 69%
    3500 6.6 TD V8 Automatic 6 AT All wheel drive (4x4) 2800 rpm. 96%
    2500 6.6 TD V8 Automatic 6 AT All wheel drive (4x4) 2800 rpm. 96%
    Vehicle 2500 6.0 V8
    Transmission type Automatic
    Gears 6 AT
    Drive type All wheel drive (4x4)
    Optimal rpm 5400 rpm.
    Transmission efficiency 69%
    Vehicle 3500 6.0 V8
    Transmission type Automatic
    Gears 6 AT
    Drive type All wheel drive (4x4)
    Optimal rpm 5400 rpm.
    Transmission efficiency 69%
    Vehicle 3500 6.6 TD V8
    Transmission type Automatic
    Gears 6 AT
    Drive type All wheel drive (4x4)
    Optimal rpm 2800 rpm.
    Transmission efficiency 96%
    Vehicle 2500 6.6 TD V8
    Transmission type Automatic
    Gears 6 AT
    Drive type All wheel drive (4x4)
    Optimal rpm 2800 rpm.
    Transmission efficiency 96%