Transmission, 6-speed, electric automatic -inc: overdrive and tow/haul mode, driver shift control, manual shift mode
Cooler, auxiliary, external transmission oil cooler, heavy duty air-to-oil
Transmission, 6-speed, electronic automatic with overdrive
Steering wheel, leather wrapped -inc: brake/transmission shift interlock
Tow/haul, cooler, transmission, auxiliary -inc: HD air-to-oil transmission oil cooler