Transmission, 6-speed automatic, electronically controlled with overdrive and tow/haul mode. Includes Cruise Grade Braking and Powertrain Grade Braking
Cooling, auxiliary external transmission oil cooler
Transmission, 8-speed automatic, electronically controlled with overdrive and tow/haul mode. Includes Cruise Grade Braking and Powertrain Grade Braking
Transmission, 8-speed automatic, electronically controlled with overdrive and tow/haul mode. Includes Cruise Grade Braking and Powertrain Grade Braking (Included and only available with (L84) 5.3L EcoTec3 V8 engine.)
Cooling, auxiliary external transmission oil cooler (Not available with (LM2) Duramax 3.0L Turbo-Diesel I6 engine.)
Super ECT 6-Speed Automatic -inc: overdrive, sequential shift mode, tow/haul mode, lock up torque converter, transmission cooler and automatic transmission fluid warmer
Super ECT 6-Speed Automatic -inc: overdrive, sequential shift mode, tow/haul mode, console mounted shift lever, lock up torque converter, transmission cooler and automatic transmission fluid warmer
Super ECT 6-Speed Automatic -inc: overdrive, sequential shift mode and column mounted shift lever