A catalytic hydrocracking process for the production of ultra low sulfur diesel wherein a hydrocarbonaceous feedstock is hydrocracked at elevated temperature and pressure to obtain conversion to diesel boiling range hydrocarbons. The system provides customers with an improved customer experience by offering a partition that is sized only as large as needed according to optionallockedtrial data downloaded for that system. The frame assembly is positioned within the stake pocket so that the frame flange overhangs one end of the stake pocket.