Transmission, 8-speed automatic, 8L90
Cooling, auxiliary transmission oil cooler, heavy-duty air-to-oil
8-Speed ZF Automatic -inc: drive select rotary shifter and single speed transfer box (high range only)
8-Speed ZF Automatic w/Paddle Shift -inc: drive select rotary shifter and single speed transfer box (high range only)
8-Speed ZF Automatic w/Paddle Shift -inc: drive select rotary shifter and twin speed transfer box (high/low range)