This is a small but important piece if you're rebuilding or adapting a Fox shock's eyelet mount: a spherical bearing reducer bushing, machined from stainless steel, sized at 1.250" outer diameter down to a 0.500" bore, with an integrated O-ring seal to keep contaminants out of the bearing interface.
Reducer bushings like this exist because a shock's spherical bearing is often a larger standard size than the mounting bolt or chassis hardware it needs to connect to. Rather than needing a different shock eyelet for every mounting bolt diameter, a bushing like this bridges the gap, keeping the mount tight and rattle-free instead of loose or improvised.
Before ordering, confirm this is the correct reducer size for your specific shock's eyelet bearing and your chassis mounting bolt, Fox offers these reducers in multiple bore sizes for different bolt diameters, and the wrong one won't seat correctly. Measure your existing mounting bolt rather than assuming based on the truck or shock model alone.
A loose or incorrect reducer is a common source of clunking or knocking noise from a shock mount that otherwise seems fine, if you're chasing a mount noise on a shock with a spherical bearing eyelet, this is one of the first things worth checking.
