1994 towncar rearend is leaking

I have started seeing a fluid under the rear end of my towncar. What could it be? How much to fix? Thanks Jack.

It’s either the rear cover leaking or the pinion seal. Have a shop take a look at it…A hundred bucks cures it either way, but with the pinion seal, there may be other issues, but we won’t get into that now…

Thats good to know, I’ve had over 20 vehicles in my life but none that has had this problem. How much fluid is in the rear end anyway? Thanks.