TorqShift 10-Speed Automatic -inc: SelectShift and selectable drive modes: normal, tow/haul, eco, deep sand/snow and slippery
TorqShift 10-Speed Automatic -inc: 10R140 w/neutral idle, SelectShift and selectable drive modes: normal, tow/haul, eco, deep sand/snow and slippery
Transmission, 6-speed automatic, heavy-duty, electronically controlled with overdrive and tow/haul mode. Includes Cruise Grade Braking and Powertrain Grade Braking (Requires (L96) Vortec 6.0L V8 SFI engine or (LC8) 6.0L V8 SFI Gaseous CNG/LPG capable engine.)
Cooling, auxiliary external transmission oil cooler