Abstract: A tray for use by diesel truck mechanics, designed and adapted for receipt and maintenance upon a tractor tire. Fundamentally, the invention includes a base comprising a rectangular box which is open at the bottom. Opposite ends of the base are each characterized by an opening of decreasing width from the bottom of the base upwardly, thus being adapted for receipt by various size tires with the crown of the tire being received through the open bottom of the base. Mounted atop the base is a tray which may be pivotally secured thereto.