rear differential seal - Ford Powerstroke Diesel Forum

 
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post #1 of 9 Old 11-24-2010, 02:33 PM Thread Starter
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rear differential seal

Ive searched and looked around and I can find any information on replacing the rear differential seal... Thanks for the help..
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post #2 of 9 Old 11-24-2010, 04:13 PM
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You need to buy some RTV. There isn't a seal.

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post #3 of 9 Old 11-28-2010, 02:43 AM
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Yes there is a seal. Mine leaks slightly. I have the new seal but couldn't get the nut undone. You have to take the prop shaft off. Mark the nut & threads then undo the big nut. When I tried I ended up just moving the truck by turning the nut. I still have to do this job, but will have a go next year now as it don't leak to bad.

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post #4 of 9 Old 11-28-2010, 07:19 AM Thread Starter
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I found some step by step and info on another page. Thanks.
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post #5 of 9 Old 11-28-2010, 07:55 AM
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Quote:
Originally Posted by Nightcrawler View Post
Yes there is a seal. Mine leaks slightly. I have the new seal but couldn't get the nut undone. You have to take the prop shaft off. Mark the nut & threads then undo the big nut. When I tried I ended up just moving the truck by turning the nut. I still have to do this job, but will have a go next year now as it don't leak to bad.

what seal are you talking about?

to op, I think some sell a gasket for the rear diff but trust me you are better off using black rtv sealant. The gaskets have been known to leak where the rtv doesn't.

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post #6 of 9 Old 11-28-2010, 08:01 AM
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RTV, trust me. I used the seals and they are crap...

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post #7 of 9 Old 11-28-2010, 08:56 AM
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Hold on, which seals are you talking about. You have a pinion seal, a seal on each hub, and the rear cover.

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post #8 of 9 Old 11-28-2010, 09:01 AM
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Just use RTV and dont worry about it. I used the red because thats what I had at the house. Just let it set before you put the oil back in. I let mine sit over night and hasnt leaked a drop.
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post #9 of 9 Old 11-28-2010, 04:42 PM Thread Starter
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I picked up some red. hoping to have some time after work tomorrow to scratch this off the todo list..
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