[Nickshu]

I rebuilt a GM recirc ball steering box when I restored my '64 Corvair Turbo. No longer own the car, but the rebuild was an exercise in counting balls LOL. It worked great when done. I think in my case the corkscrew shaft was worn and pitted, as a result the adjuster had been maxed out and could not longer keep the mechanism tight. I bought 3 steering boxes to salvage parts as much was NLA other than balls and seals. Once everything was packed w/ new balls there were various shim thicknesses to get the rotational tension to spec. You had to reinstall the rack and use a fishing weight scale on the steering wheel to set the tension to spec w/ the front wheels off the ground. Originally these were packed w/ oil...guaranteed leaking. I packed mine w/ a mix of synthetic grease and STP, as recommended by others. The car was and continues to be a 95 point concours winner, the new owner shows it much more than I did. I sold it in around 2016, have posted about it here before.