In Reply to: Re: Cracked 9N Axle Housing, cast iron or cast steel? posted by K.LaRue-VA on April 15, 2019 at 16:49:26:
It does seem like a better quality cast iron. There was a thin spot near the crack, not sure if it was a casting flaw or something that was worn down or damaged over the years. If I do get it to weld up I'll make a fixture to spread the load more than the original U bolt did. No way to avoid welding this upside down since the crack goes all the way around the axle tube.