The 64 Galaxie oil pan will not have the shallow rear section, with the indents for inner tie rod clearance, can`t say for sure it the tie rods will hit for certain on hard turns, but I would guess it could be a problem. A bigger problem will be how you resolve the motor mount problem. A 64 block will only have the narrow 2 bolt motor mount bolt pattern. Stock FE Comet/Fairlane and Mustang motor mount plates are designed for the 1965 and later blocks, that have 4 motor mount bolt holes.