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Rear Differential Leaking, First Post

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Old Nov 29, 2009 | 10:54 PM
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Smile Rear Differential Leaking, First Post

79 F-100 SWB w/4.9L 300ci in it. The seal is leaking where the driveline goes into the rear diff.
How tough is it to get that seal out (any special tools) or is it a simple drop the ujoint and pull a few things out of the way and you have it or what?

Thanks for your help!

 
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Old Nov 30, 2009 | 09:27 AM
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Make sure your axle vent tube isn't plugged up or the new one will end up leaking too.
 
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Old Nov 30, 2009 | 01:54 PM
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The only special tool you'll need is the socket to remove the pinion nut, it around the 1 1/4 size but I'm not sure. Other than that there's nothing special, remove the drive shaft, remove the pinoin nut, remove the yoke and then pry out the seal. Should take less then an hour.
 
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