Level of certainty that's the source? Liquids (fuel, oil) are funny sometimes and will run along surfaces taking the fluid away from where it's actually leaking from.

If not absolutely certain, may be worth a few minutes of studying the leak a bit.

B Dartman's 71 Dart Swinger in Mopar Muscle (Sold Dec 2021): https://www.hotrod.com/articles/1971-dodge-dart-destiny-determination/
B Dartman's 71 Dart Swinger in Dodge Garage (Sold Dec 2021): https://www.dodgegarage.com/news/article/showcase/2019/04/destiny-determination.html
B Dartman's 71 Dart Swinger early build pictures (Sold Dec 2021): https://s165.photobucket.com/user/Billswild440dart/library/