Texas Air Salvage has gotten back to me and confirmed that they do not have any AFT bulkheads.
...because that is the one that usually cracks, or cracks when you remove prop.
WHY are both yours bad? Usually it's the plastic fwd spacer in the earlier models that cracks because it is not shimmed correctly. My friend had a 150H and replaced the plastic spacer which was almost $600, then found it cracked again about a year later when selling plane- so he put the skull cap on and gave the buyer the spinner parts to decide if they wanted to put it back on.
You can't really put a skull cap on the L & M models due to the spacer and extended fiberglass nose bowl caps.
Installing the spinner on the L & M models, you have to put a slight preload on the spinner, or else it will crack again.
