Transmission, Allison 10-Speed automatic (Standard with (L8T) 6.6L V8 gas engine.)
Cooling, auxiliary external transmission oil cooler
TorqShift 10-Speed Automatic -inc: 10R140 w/neutral idle, SelectShift and selectable drive modes: normal, tow/haul, eco, slippery roads and trail
TorqShift 10-Speed Automatic -inc: 10R140 w/neutral idle, SelectShift and selectable drive modes: normal, tow/haul, eco, slippery roads and off-road