Features: 1.Replacement for Ford F250 F350 F450 F550 Super Duty 2005?2010 car models, restoring 4 wheel drive to its proper performance. 2.4x4 4WD auto locking hub assembly, built from high quality aluminum alloy and iron materials to ensure long lasting durability. 3.Because of the action of automatic hub, the front wheel can rotate freely. it reduces unnecessary wear and tear between components. 4.To some extent, the hub link assembly can help car save fuel, provide maximum traction and grip when off road driving or towing. 5.Built to meet standard specification, strictly follow factory quality control, easy to replace the old or damaged parts. Specification: Item Type: Front Hub Lock_x000D_ Material: Aluminum Alloy + Iron_x000D_ Part Number: AC3Z3B396A_x000D_ Installation: Direct replacement to complete the fit_x000D_ Installation Location: On the front wheel hub and shaft assembly_x000D_ Fitment: _x000D_ Replacement for Ford F250 Super Duty 2005-2010_x000D_ Replacement for Ford F350 Super Duty 2005-2010_x000D_ Replacement for Ford F450 Super Duty 2005-2010_x000D_ Replacement for Ford F550 Super Duty 2005-2010_x000D_ Models with auto locking hubs only PackageList: 1 x Front Hub Lock 1 x Protective Sleeve Note: 1. Please double check the part number of your item, matching information is for reference only._x000D_ 2. If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks!_x000D_ 3.Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.