4-speed automatic transmission w/OD (REQ: LY2 4.8L Engine)
Brake/transmission shift interlock
6-speed automatic transmission w/OD
4-speed automatic transmission w/OD
HD air-to-oil auxiliary transmission oil cooler
Electronic variable 4-speed automatic transmission
6-speed automatic transmission w/OD & tow/haul mode
Brake/transmission shift interlock
HD air-to-oil aux transmission oil cooler