8-Speed Automatic
6-Speed Automatic -inc: Leather-Wrapped Shift Knob
6-Speed Automatic -inc: Leather-Wrapped Shift Knob w/WLA-inc: 11.50" Dual-Wheels Rear Axle
Transmission, Allison 10-Speed automatic (Standard with (L8T) 6.6L V8 gas engine.)
Cooling, auxiliary external transmission oil cooler