Can anyone identify this leak?

DropTopDon

TJ Enthusiast
Joined
Nov 7, 2019
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642
Location
VA
Looked at a puddle of what i thought to be oil in my garage and thought my front diff was leaking, I got down and saw this. Does anyone here know what is leaking?
IMG-6588.JPG
 
Check your differential breather tube and make sure it's not crimped or clogged up with something... The fluid heats up and expands and if it can't then it's going to come out anywhere it can.

if you have to replace the pinion seal get somebody to do it that knows what they're doing or somebody to help you then knows what they're doing.
 
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Pinion Seal. $10 part, but can be a B***h to replace. Lots of tutorials online and they looked super easy. I recently did my front one and had to use a floor jack and breaker bar to get the pinion nut off. Then almost as impossible to get it back on and lined up to where it was before. If you can get the pinion nut off with just a breaker bar, then it will be a breeze and I would say go for it, otherwise have shop do it.
 
Take a pic of the pinion side. Based on the oil around the bolts in the diff over. Also keep in mind the oil could be blowing backwards from wind while driving.