 In 1955, Mickleover Transport designed and made a front cowl to replace the panels, which was made of glasspol, a polyesther resin reinforced with glass-fibre matting.The cowls were initially fitted to 100 vehicles, and improved access to the control panel and tiller gear.They contained orange pigment, of the same colour as the United Dairies livery, which meant that they did not have to be painted once manufactured.