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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Rear diff cover

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Old Aug 5, 2011 | 02:02 AM
  #1  
krhoggard's Avatar
krhoggard
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Rear diff cover

I powder coated the diff cover, and it is ready to go back on. I got the gasket but had a question. The factory had a metal gasket, and some sort of thicker cardboard material gasket,AND clear and black sealant.

All I got was a thin felpro gasket, and a tube of black gastet silicone, is that enough? Dont want to do this twice

95' flareside 150

new to forums also, been looking for good one!
 
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Old Aug 5, 2011 | 04:52 AM
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ILLXJ
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From: S. ILL.
I just use silicone on mine.

JIM.
 
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Old Aug 5, 2011 | 04:54 AM
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Bob Gervais
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From: Charlestown, RI
+1 for silicone only. I can't remember exactly, but I think that's the factory Ford spec?
 
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Old Aug 5, 2011 | 08:37 AM
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White Max
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From: Imperial, MO
Just RTV here. No need for a gasket.
 
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Old Aug 5, 2011 | 09:12 AM
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ChristopherN
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From: Northern IL
I put the clear silicone on my diff cover, works fine, I did this back in April and no leaks yet. However I did the same on the fill plug and that kept leaking, or it appeared to be, so I got the black sealer because the guy at the parts store said it's more resistant to being eaten by the oil. So far, it's been fine.
 
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Old Aug 5, 2011 | 11:08 AM
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Diesel_Brad
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Either use RTV or a Gasket. NOT both.

I use Permatex 80697 Copper Spray-A-Gasket Sealant On gaskets just to fill in minor imperfections
 
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