most c body pans run on a 68-70 b body will have the drag link rubbing the pan, the c body pan is deeper [thicker] in that area of the pan.

1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5