6-Speed Automatic
Transmission, 8-speed automatic, electronically controlled with overdrive and tow/haul mode. Includes Cruise Grade Braking, Powertrain Grade Braking and Tap-Up/Tap-Down Driver Shift Control (Requires (LV1) 4.3L gas V6 engine. Reference the Engine/Axle page for availability.)
Brake/transmission shift interlock, for automatic transmissions