How big is Cummins 260 horsepower with gearbox, can it be equipped with small eighth gear quickly?

Cummins 260 horsepower with 4L-4.2L capacity gearbox, with fast, small and eight gears. According to relevant public information, Cummins 260 is a heavy-duty single diesel engine, which is the latest generation of Cummins single diesel engine with small volume and high power. Its horsepower engine can be equipped with 4L-4.2L gearbox, such as ZF6S450, 6S600, 6S 1000, 8HP45/50, 8HP90/ 100 and other series. Cummins 260 engine has been used with fast, small and eight-speed automatic gearbox. In this way, when consumers buy a car, they can get the dual advantages of Cummins and Fast on the same platform, so as to better meet the needs of consumers.