Built Tough for Heavy-Duty Work and Rugged Adventures, the 2026 Ford F-250SD XLT Combines Power, Durability, and Advanced Technology in Avalanche The 2026 Ford F-250SD XLT with the mighty Power Stroke 6.7L V8 Turbo Diesel engine delivers exceptional torque and towing capacity, making it the ideal companion for demanding jobs and hauling heavy trailers. Its 10-speed automatic transmission with dual shift mode ensures smooth, responsive performance whether you re navigating rough terrain or cruis