Difference between oil pans

Dartman, here is what I found.....
According to 1962 to 1965 moparornocar, the Mopar Performance Chassis book says.....
2463408, for 64 a body, a engine,and,
2463517 for 65-66 a body, a engine, share identical dimensions.
Depth front: 3.75
Depth sump: 7.40
Depth rear: 5.09
Hope this helps.....