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Rear End Leak

1143 Views 4 Replies 3 Participants Last post by  Chafalls7.3Powerstroke
I have a rear end leak. 1999.5 F350 Dually. I know its the front seal it is coming out the front of the pig. What is the name of that seal and where is the cheapest place to get it any ideas?

Thanks for your time, Matt
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Hey Matt,

Where in Michigan are you located, if you don't mind my asking? I'm just south of Jackson and have almost exactly the same truck as you (see signature), minus the mods, with the same problem with the leaky differential. I noticed oil on the pig soon after I bought it and now I have a puddle on my garage floor. I checked the level and ended up putting a quart in it. :shocked: :worried: I don't drive mine much and if it will hold out, would like to get this fixed come fall or by the time snow flies, anyway.

On a side note, you may want to check your vent to make sure its not plugged, building pressure and blowing out your seals.

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