This 35 horsepower post hole digger gearbox is suitable for small Japanese type tractors such as Kubota etc.The Gear ratio is 2.92 : 1. The input shaft is the standard 1 3/8 x 6 Spline and the output shaft is 2 inch diameter round with 1/2 inch cross drilling.Spare parts are readily available such as oil seals and bearings.Freight is paid to any destination in Australia.