There are multiple trims and configurations to choose from, on this 2020. Let’s start with the configurations: 2500 regular wheelbase, 2500 extended wheelbase, 3500 regular wheelbase, and 350 extended wheelbase. The WT trim is available in four different engines. The 4.3L V6 gas engine, 6.0L Vortec engine, 6.0L gaseous CNG/LPG capable V8 engine and 2.8L Duramax Turbo-Diesel 4-cylinder engine.
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