I would use eBay as well as calling the parts suppliers who advertise in the "Parts for Sale" section of the G&D. That is a one year only shaft for only Master Deluxe models
Based on the damage to the worm gear I also expect that the sector shaft needs replaced as well as the bushings and bearings in the box.
Having been though this recently with my 38 you best bet is to find a complete used steering box. You can then use the new steering box or use the worm gear. I had issues with a worn worm gear and a nos sector shaft, they would bind up at the end of travel. Luckily i was able to get another used worm gear that worked with my nos sector shaft.
Hi. I believe I have what you need. Someone needs to confirm that my 1938 master deluxe steering box etc will work on your 1939. I have the complete steering column,box etc. it’s in excellent condition. Just let me know. Thanks good luck Mark. 503-701-1618.
Hi. Are not the worm gear and sector gears the same. I have these items. You just press off and on the worm gear. I have a new one which is off the shaft. And I have a new sector gear as well. Mark
I agree that the worm can be rebuilt with welding and then machining. I would not expect the repair to be as durable as the original worm gear.
It should be more that adequate for your purposes.
I had not thought about pressing the worm gear on and off the shaft. That could be an even better alternative. However I am not sure that the ”˜38 and ”˜39 Master Deluxe worm gears are the same. The sector roller and pitman arms are different.
I can’t determine the differences from the info in the parts list.