Jeanie, I had a original nos, GM part number BluePoint reamer that was specifically for our trucks. It reams .922 which is perfect for a .921 kingpin. It was new when I bought it and after using it to install new bushings on my 3600, I sold it to Stovebolt member, 5 Window 9434. Just checked and he's still active, you might reach out and see if something can be worked out.
RonR
