Yesterday my 34 Ford with french flathead was not starting anymore despite turning starter. I thought the Bendix has grenaded as it is a 6Volt starter running on 12V - not so as when I removed the starter I found the ring gear had left the flywheel. The ford starter is very violent when run with 12V so in the course of two years and 5000km the Bendix hammered the ring gear slowly off the flywheel, away from the shoulder. So I worked through the starter hole of the pan and drilled/threaded the ring gear and flywheel for a setscrew to hold the ring near the flange. Turned the engine with the wheels in 4th gear, plugs removed and was able to drill the next hole - 16 teeth from the first so 7 screws are equally spaced. Insert screw and tightened a bit. With a strong torch I heated the gear through the hole and started to give it a couple hits with a hammer. Was able to turn further and drill the next hole, insert screw, tighten and so on. Every time I heated I turned tooth after tooth and gave it some hits. Finally it jumped back onto the flywheel and I could turn and heat, hit it, turn and heat, hit it and was able to push the ring gear completely back to the shoulder where it once was. Now those 7 setscrews were inserted with Loctite and a 12V Powermaster starter fitted - this has no pulling effect on the ring gear so I hope the problem is fixed for now. Tomorrow I will find out if everything works - keep fingers crossed.