General Motors launched the GMC Sierra AT4 with the debut of the light-duty pickup’s fourth generation for the 2019 model year. The Sierra range, including the AT4, was later refreshed for the 2022.5 ...
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AT4 vs AT4X: Off-Roading GMC Trucks Compared
Many dedicated off-roader fans prefer to build their rigs from scratch, opting for more basic stock trucks, then upgrading them with varying degrees of intense aftermarket parts. This can be a great ...
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