At a moment when the auto industry had staked its future on electrification, General Motors is choosing a different kind of confidence — the kind measured in torque and towing capacity. With a new 8.3-liter Duramax diesel V-8 destined for its 2027 Silverado and Sierra heavy-duty pickups, GM is acknowledging what quarterly earnings have long whispered: the electric truck revolution is arriving more slowly than promised, and the people who depend on trucks for their livelihoods are not yet ready to let go of the combustion engine. This is less a retreat than a reckoning — a recalibration of time