No, not the inner fenders or hood line.
It's just a 60 or 61 has a different K frame and steering box.
Lower control arms and steering linkage is different.
I meant the whole 60-62 A Body is the smallest engine compartment.
You can bolt a 62 k frame into a 60-61.
Column is different. Not sure about the firewall around the column.
60-61 don't have the common firewall wire disconnect.