6-Speed Automatic (DISC) No longer available as standard equipment as of January 16, 2019.
8-Speed TorqueFlite Automatic (DFD)
8-Speed TorqueFlite Automatic (DFL)
8-Speed TorqueFlite Auto
6-Speed Automatic
Transmission, 6-speed automatic, electronically controlled with overdrive and tow/haul mode. Includes Cruise Grade Braking and Powertrain Grade Braking
Transmission, 6-speed automatic, electronically controlled with overdrive and tow/haul mode. Includes Cruise Grade Braking and Powertrain Grade Braking (Requires Double Cab model and (L83) 5.3L EcoTec3 V8 engine. Requires Crew cab model without (GAT) All Terrain Package, (PDT) SLT Crew Cab Premium Plus Package, (NHT) Max Trailering Package or (L86) 6.2L EcoTec3 V8 engine.)
Cooling, auxiliary external transmission oil cooler
Cooling, auxiliary external transmission oil cooler (Included and only available with (L83) 5.3L EcoTec3 V8 engine.)
Transmission, 8-speed automatic, electronically controlled with overdrive and tow/haul mode. Includes Cruise Grade Braking and Powertrain Grade Braking