The extra power is fantastic, and so are more forward gears. The old six-speed automatic, with its huge step from first to ...

Cummins swapping a Mustang sounds simple until you actually try it. From cutting the firewall to fitting a diesel the size of a refrigerator under the hood, nothing went smoothly. Every bracket, mount ...

While Clessie Cummins and business partner William G. Irwin didn't invent the diesel engine, they saw its budding future and in 1919 started Cummins Engine Co. The diesel engine has undergone several ...