The Holland Trailer Jack Gearbox is designed to provide reliable and durable performance for a variety of trailer jacks. This corrosion-resistant gearbox is designed to require minimal maintenance and is easy to install. It is engineered for smooth operation, allowing users to raise and lower the trailer with ease. The gearbox is constructed from high-quality materials and is designed to withstand the toughest conditions. With its reliable performance and long-lasting durability, the Trailer Jack Gearbox is the perfect choice for any trailer jack. FleetPride is your First Click in Heavy Duty®.