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6L80 Specifications

Transmission Drive

Rear Wheel Drive

6 Six Forward Gears

Gear Ratios

1st Gear Ratio

4.027

2nd Gear Ratio

2.364

3rd Gear Ratio

1.532

4th Gear Ratio

1.152

5th Gear Ratio (Overdrive)

0.852

6th Gear Ratio (Overdrive)

0.667

Reverse

3.064


Diameter of Torque Converter Turbine

258/300 mm


Pressure Taps

Line Pressure


Transmission Fluid Type

Dexron VI


Transmission Fluid Capacity

With 258 mm Converter (Dry) 9.7L

With 300 mm Converter (Dry) 11.9L

Bottom Pan Removal 6.2L




Transmission Weight with Torque Converter

6L80: 96-104Kg (wet)


Converter Stall Torque Ratio Range

258mm Converter - 1.7

300mm Converter - 1.9


Maximum Engine Torque

583Nm (430 lb ft)


Sustained Input Speed

6500 RPM


Maximum Gross Vehicle Weight

1745 - 2360 kg (3847 - 5203 lb)


Books

ATSG Overhaul Manual

GM Technicians Guide