Increase fuel capacity on 2006-2024 Dodge/Ram Mega Cab short bed diesel trucks with S&B's 55-gallon midship replacement tank. It fits Ram 2500 and 3500 applications with 5.9L or 6.7L Cummins engines, reuses the OE sending unit and float, and mounts in the stock fuel-tank location using included installation components. The added capacity helps towing, work, and travel trucks spend less time stopping for fuel. Notes: the gauge may stay on full for the first several gallons, DTE cannot be recalibrated for the larger tank, high-flow truck-stop nozzles may not shut off automatically, and auxiliary tanks may affect S&B warranty coverage.