Dynatrac | Freespin Kits

The original Dynatrac™ Free-Spin™ Heavy Duty Hub Conversion Kits are popular with off-road enthusiast as well as companies who rely on their Dodge and Ford trucks for work. Free-Spin kits replace problematic unit bearings, eliminating a weak link that is prone to failure. In addition to a significant increase in strength and durability, Dynatrac Free-Spin kits improve fuel economy by reducing the components that spin in the front axle when 4-wheel-drive is not selected, and the kit provides the flexibility and robust design of manual locking hubs.