The Dana Axle WSS Plug eliminates the wheel speed sensor in Dana 60, 70, and 80 axles and replaces it with a sleek, zinc-plated steel cap with an o-ring and features a 1/4" NPT boss for routing a custom vent hose. This frees up space for axle trusses, link suspension mounts, etc. A plug for the factory vent hole is also included. Stainless steel SHCS included.