Rearend is spitting fluid by driveshaft connection

[Invasivore]

There is fluid all underneath the truck where the driveshaft meets the rearend. Is this an easy fix?

[Invasivore]

I guess it is considered a pinion seal leak. FYI, i dropped it off at the local dealer since it is under warranty. I decided I'm not going to deal with it. I'll let you guys know the outcome.

[JJFLASH]

Yup simple fix. Need a puller to get the yoke off, slide hammer with a screw in it works slick to pop the old seal out then tap in the new seal. I like the warranty fix though. Call me when it's done

[blackhawk783]

Originally Posted by JJFLASH

Yup simple fix. Need a puller to get the yoke off, slide hammer with a screw in it works slick to pop the old seal out then tap in the new seal. I like the warranty fix though. Call me when it's done

Yep, agree.

[Invasivore]

Yeah they fixed it in less than a day and it only cost me $50 out of pocket. I like working on my truck, but HATE fixing leaks

[JJFLASH]

I hear ya. I'm all for working on my own stuff but if there is a way to make someone else do it for free...yeah I'm all over it lol.

Thanks for the update.

[country6.0]

Hey guys i also have a pinion leak at the rear, its not pouring yet but its wet and i noticed about a 1/16 of an inch up and down play on the pinion. Should i be concerned?

[JJFLASH]

Yes

Do you know how to fix it? Seal and bearing.

[ZMANN]

make sure your vent tube is clear for one

it probably won't get any better with time if it is a pinion seal .

the fix if done correctly isn't as easy as mentioned in reality there is a crush sleeve that sets the preload on the pinion and the torque to set it is high

however people do mark the pinion and nut and count threads to loosen ,replace seal and re install nut to the exact same location

[ZMANN]

Ford Sterling 10.25 and 10.50 Pinion Seal Replacement and Future Upgrades | Diesel Trucks Blog & Discussion at Diesel Power Magazine