If the AOD uses the small block Ford pattern the following
may apply:
From the FAQ thread:
http://4btswaps.com/forum/showthread.php?t=32 Post #9:
The following part numbers are found in the Ford 4BT automatic transmission vans. Info from the Yahoo 4BT group. I have no additional information:
Adapter - 3912601 FH9043
Flexplate - 3918957
Clamping ring - 3904361
Crank adapter, (hub?) - 3907620
Torq converter adapter - 3907619
Note: Cummins referenced part numbers are frequently updated by Cummins so these listed numbers may only provide a starting point for cross referencing.
It appears you may be the "pioneer" going into this area so please update us on how you intend to increase the pump pressures at lower RPM's, the method you use to lower and control the shift points, and information about the custom torque converter required for the required lower stall speed.