Everyting pictured. Arm, slider and chain and bearings in it. I'll check the bearings again for condition. No caps or shaft. However, I have a used one and a brand new one in the package that I might include. Where you at? Shoot me an offer? Not sure what to ask and I don't know the brand or manufacturer. Looks great and pretty tough. No familiar with the drag racing parts. I took it off and put a nice fresh powdercoated stock unit on.