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Damp spot on drive shaft near rear u join

575 Views 5 Replies 3 Participants Last post by  Sparkylv
Changing the rear brakes the other day, and while the wheel is off I am inspecting the rear end and drive shaft.

I look at the end of the drive shaft and see its damp and a tiny drop is sitting on the bottom of it. I wipe the drip, could not get an accurate smell of it because in the process I wiped some rust onto the rag.

So the fluid was unknown. But there has never been a leak where my truck is parked at night.

Any ideas.
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only thing it could have been would be tranny fluid from rear seal to run down driveline. but with the temps changing so much its prolly the humidity...
 

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The whole end of my driveshaft was soaked one time, i checked into it and it was a pinion seal leaking. i checked the oil level in the rearend and it was fine. cleaned the pinion seal area and end of driveline up and it mysteriously quit leaking...
 

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Discussion Starter · #6 ·
The whole end of my driveshaft was soaked one time, i checked into it and it was a pinion seal leaking. i checked the oil level in the rearend and it was fine. cleaned the pinion seal area and end of driveline up and it mysteriously quit leaking...
That is what I was thinking, because it is not leaking down the shaft?

So just run it i suppose
 
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