TorqShift Elect 5-Spd Auto w/OD w/o 99S-inc: electronic throttle control w/99S-inc: tow-haul and electronic throttle control
Transmission, 4-speed automatic, electronically controlled -inc: overdrive, tow/haul mode, internal transmission oil cooler
Brake/transmission shift interlock, for automatic transmissions
Transmission, 6-speed automatic, heavy-duty, electronically controlled -inc: overdrive, tow/haul mode, internal transmission oil cooler
Transmission oil cooler, external