bigtractorpower — If you love the sound of horsepower and the sight and sounds of manure spreading , you are in for a treat. Big Tractor Power is out in northeastern Iowa where a JOHN DEERE 8330 tractor—rated at 225 PTO horsepower—is teamed up with 5,800 gallon PATZ Liquid Manure Spreader. This tractor is tag team spreading with an INTERNATIONAL 6wd PayStar 5000 truck equipped with a 4,000 gallon HUSKY Liquid Manure spreader.