The KIWI Post Driver was developed to serve high volume users such as fencing contractors, municipalities, do-it-yourself farmers or anyone who wants the finest piece of equipment capable of handling the most difficult jobs. It will drive all types of wood or steel posts in nearly every soil condition. KIWI Post Drivers are proven, reliable units ? working in the field for more than twenty years. The front (stationary) tractor mounted driver is designed primarily for four-wheel drive tractors. This option is popular with contractors who work on difficult terrain. Requires minimum 4-wheel drive tractor, 60HP. Some assembly required INCLUDES: Heavy Duty Post Driver Base Plate Hydraulic Jack Stand Front Sliding Tractor Mount PTO Hydraulic System Specifications 30 gallon oil capacity 21 GPM pump size 120, 000 lb impact Minimum hydraulic requirement: 15 GPM @ 2000 PSI