Hello,
What happened is the driveshaft yoke must have catch the edge of the seal and damaged it causing the leak. You must remove the driveshaft and install a new seal here is a guide and instructions and diagrams below to help you fix the car.
https://www.2carpros.com/articles/how-to-remove-a-drive-shaft
Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.
Images (Click to make bigger)
Monday, May 6th, 2019 AT 3:04 PM