Well, I drilled them out anyway. I think I may have gotten one for pwr steering. It was an inch too short. I originally installed it by dropping my steering box, installing the shaft, and forcing the box into position. This maxxed out the rag joint and even popped the retainer spring out. So, I ordered a new boot for a new shaft and drilled and extended it. Now it fits perfectly. Too bad I didn't realize it was the wrong shaft before I tore it up. Now my question is, Should I drill a new hole and put a shear bolt in it or just let it be? I don't think it's going anywhere.