a novel hydraulic jack kit is disclosed comprising a specialized jack configured to be compatible with selectively interchangeable components . the specialized jack on its own is configured to lift vehicles such as motorbikes and snowmobiles completely off the floor , so that the only support is the jack itself . the specialized jack is also configured to receive a platform component that converts the jack into one suitable for lifting automobiles with a large wheel base that will have two wheels remaining on the floor when lifted . it is further configured to receive a platform component that converts the jack into one suitable for lifting a vehicle with a short wheel base , where the elevated vehicle adopts a large angle of elevation . in all configurations , a novel stabilizing structure is provided .