Off-Road in HD: GMC Announces the Sierra HD AT4X and Extreme AEV Edition
The Truth About Cars
MAY 1, 2023
The 2024 GMC Sierra HD AT4X gets a 6.6-liter liter gas V8 as standard, but buyers can add the 6.6-liter A ten-speed automatic transmission and four-wheel drive are standard. inch lift kit, Multimatic DSSV dampers, an electronic locking rear differential, and 35-inch Goodyear tires. Image: GMC] Become a& TTAC insider.
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