'68 Barracuda Notch
Since you are cutting you may want to consider still doing the dynamic renovation kit. This is a common failure point for the A-body due to metal fatigue from flexing every time the door closes. The repair panel is a thicker gauge metal than the OEM.
Driver side:
Dynamic Renovation - 67-76 A-body Driver Side Door Jamb Repair Plate
Passenger side:
Dynamic Renovation - 67-76 A-body Passenger Side Door Jamb Repair Plate
I got a patch panel for my driver side door jam.
Since you are cutting you may want to consider still doing the dynamic renovation kit. This is a common failure point for the A-body due to metal fatigue from flexing every time the door closes. The repair panel is a thicker gauge metal than the OEM.
Driver side:
Dynamic Renovation - 67-76 A-body Driver Side Door Jamb Repair Plate
Passenger side:
Dynamic Renovation - 67-76 A-body Passenger Side Door Jamb Repair Plate