Center drag link, are they really $600? 1964 dart
The 392 stamped pan is the A,B,E,F body pan. The 875 is the '74-8 C-body pan, and a 438 pan is the '70-3 C-body. It's all about the clearance between the pan and the K-member and steering linkage. You also would be advised to get it's matching oil pickup tube.