I split my tractor to fix the flywheel starter ring gear (1948 8N) and at the same time I'm trying to replace the cable for the Sherman step-up. Does anyone know what it takes to remove the cable from the end of the Sherman selector shaft? Mine looks as though there is a nut at the end of the shaft through which the cable goes but it looks burred up to the point that it is almost round. It is about 7/16 or so, but a wrench doesn't fit it. I know I'll have to have a cable made, but I can't get the old one out and I haven't found a schematic for a cable shifter where the cable goes into the end of the shaft.