Free-Spin 1550 Kit 2015-2022 Ford F-250 and F-350 with DynaLoc™ Hubs Jeep JT 75" Proprietary Dynatrac Variable Tube

75" Proprietary Dynatrac Variable Tube Thickness

TECH NOTE: Springs are NOT rated for use with models equipped with EcoDiesel engines

gear setup and install kit

The installation kit provides a safer way to press in the balljoints at home or in a shop without damaging the new balljoints

Free-Spin 1550 Kit 2015-2022 Ford F-250 and F-350 with DynaLoc™ Hubs Jeep JT 75" Proprietary Dynatrac Variable TubeThe Dynatrac Free Spin Heavy Duty Hub Conversion Kit for 2015 2022 Ford F 250 and F 350 Super Duty trucks is designed to replace the factory unit bearings with fixed spindles for superior strength, and smooth performance. This kit fits both single rear wheel (SRW) and dual rear wheel (DRW) trucks. This kit includes DynaLoc locking hubs, providing improved locking hub function, greater strength, and a shorter profile for better clearance that reduces