Driving impression: JCB Loadall 531-70 Agri Super Heart and lung transplant JCB recently added its own 444 engine to the familiar Loadall telehandler range in 100hp turbo and 125hp charge-cooled formats. In addition, these latest machines also benefit from new four- and six-speed transmissions, as James de Havilland discovers when he climbs aboard a 531-70 Agri Super model