I did Opentracker’s linkage. It’s got a 1/4” (or so) rod welded like a spine all along the z-bar, and heims at all positions on the linkage, plus it has a bearing on the Z-bar stud that mounts to the block, and with solid mounts you have the option of a second also bearing at the frame rail mount. I was changing from an automatic, so I didn’t have any of the pieces to start with, so his kit was an easy solution. I rounded it out by installing that needle bearing pivot kit that Scott Drake sells for the clutch lever. It’s a hell of a lot of money to spend on clutch actuation, but in my opinion the pedal is every bit as smooth as a hydraulic assembly, but retains the feedback of a direct connection. It’s truly the best of both worlds.I have a couple of birds in my ear telling me to use heim joints but I haven't bought any yet. All I have currently is reproduction stock linkage...