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Old Jun 8, 2014 | 06:59 AM
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Patchy 73's Avatar
Patchy 73
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Diff oil
Hi All,
I got a leaking rear diff gasket
What is the recommend diff oil after I replace the gasket
Might be a dumb question, I have never replaced the diff oil in my F250
Done it plenty of times on my old F100's

Cheers,
Patchy
 
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Old Jun 9, 2014 | 01:22 AM
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I use this Patchy.
Full Synthetic 80W-140 Heavy Duty Limited Slip Differential Oil- Nulon Australia

No gasket. Use tube goo.

do ya self a favour and get one of these. Got a drain plug and fill hole with magnetic dipstick.

AFE 10.25/10.5 Rear Diff Cover - Machined Fins - Riffraff Diesel Performance
 
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Old Jun 9, 2014 | 04:00 PM
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Also double check the breather tube isn't blocked while you are at it. Its often the cause of leaky diffs, and if not fixed, even with new goo, it will begin leaking again very soon.
 
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Old Jun 10, 2014 | 04:01 AM
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Patchy 73
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Thanks guys,
A job for this weekend

Cheers,
Patchy
 
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Old Aug 29, 2014 | 09:12 PM
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Well that answers my question,
There are two different diff covers listed on the Riffraff site and i was not sure what to order. They look like they will make servicing a lot easier.
Thanks Brian
 
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Old Aug 30, 2014 | 05:22 AM
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we have the 10.25 sterling. U can get the machined or non machined surface. Its just the look that is different.
 
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Old Aug 31, 2014 | 06:18 AM
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quick one I need to do the same but bought the additive as well from ford must I add it to the oil I bought Castrol Syntrax 75w-140 limited slip. and any views on transmission oil too might as well do that while I`m busy
 
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Old Sep 2, 2014 | 01:49 AM
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I'm using Castrol TransmaxZ in the tranny and power steering
 
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Old Sep 2, 2014 | 10:43 AM
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Originally Posted by MRPERSONALITY
quick one I need to do the same but bought the additive as well from ford must I add it to the oil I bought Castrol Syntrax 75w-140 limited slip. and any views on transmission oil too might as well do that while I`m busy
I assume your truck has the ZF5 trans, right?

If so, any synthetic auto transmission fluid that is rated for Mercon V (it should say on the side of the container)
 
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Old Sep 2, 2014 | 12:08 PM
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yea I take that its a ZF5, I will have a look out for that
 
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Old Sep 6, 2014 | 11:54 PM
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Another question, What Diff is in the rear of the 2wd F250. I would like to buy another diff cover,
 
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Old Sep 7, 2014 | 11:41 PM
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Its a Ford Sterling 10.25/10.5

Riff Raff are probably your best bet for something like that.
 
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Old Sep 7, 2014 | 11:48 PM
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Thanks man I appreciate, gonna get shopping
 
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