2020 Gmc Sierra 1500 At4 Engine Specs. The 2020 GMC 1500 can be equipped with a six-speed automatic transmission an eight-speed automatic transmission or a ten-speed automatic transmission when properly equipped for each engine. The 2020 GMC Sierra 1500 AT4 will equip most of the high-end comfort and tech features but will also add off-road enhancements.
The new engine options should also come in time and be ready for off-road adventures. 8-spd auto wOD Transmission. The 2020 GMC Sierra 1500 AT4 will equip most of the high-end comfort and tech features but will also add off-road enhancements.
Sierras 9200-lb rating requires a properly equipped AT4 Crew Cab Short Bed 4WD model with 53L V8 engine.
2 - 1st row LCD monitor. 2020 GMC Sierra 2500HD Crew Cab Release Date Engine Specs Price 2021 Gmc Sierra 1500 Crew Cab At4 4X4 Rumor Specs Release Date Redesign 2021 GMC Terrain Redesign Release Date Changes. 2 - 1st row LCD monitor. That includes the Duramax diesel.