I've got a two part shaft on a weed eater. The top half shaft female section that mates to the lower half shaft is wallowed out to a round hole. The hole should be square to mate up with the top of the lower half shaft. Can I use JB weld to makeup the difference? Can I coat the top of the lower shaft with mixed JB Weld, slide it into the rounded upper half shaft socket, and pull it out carefully leaving a square hole once it has cured up? If so will I need a slip agent to keep it from adhering to the lower half shaft? Or am I faced with replacing the upper half shaft, or permenantly welding the two shafts together?
Are you following all of this???