Replacement axle boot dust seal for 2.5 ton Rockwell axles, commonly used in Military and heavy duty trucks. Our new heavy duty boots are designed with a thicker, higher quality material and made with a slightly larger circumference for ease of installation, while maintaining the required seal. Boots are a rubber/silicone composite. These boots feature a heavy-duty gold zipper. See our other listings for your offroad mud truck or hydraulic needs.