Parts look wet

[CUAviator]

A little while ago, I noticed that the bottom part of my differential looked “wet”. I got under the truck to check it out (wasn’t dripping, seemed more dirty and greasy than anything else) and I also noticed another part looked a little wet (gas tank??)
Does anyone know what would cause this, or what needs to be done. If anything ?

 

[SYKRAMMAN]

Your diff cover is seeping very very slowly, it’s not a major,immediate problem but will need fixing at some point, very easy. The gas tank, it could be from leak detection pump or the seal on top of tank, I would check further on that to make sure your not leaking gas though.

 

[Bigguy45]

Or your pinion seal is leaking and throwing fluid up on the tank

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[Move Over]

Or your pinion seal is leaking and throwing fluid up on the tank

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Could be that. That’ll throw fluid a good distance at the RPM it’s spinning.

Probably worst case scenario as well since you have to pull the diff/pinion seal. No fun.

OP - i would clean everything off with brake cleaner and throw a little UV dye in the fluid to determine where it is seeping from.


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