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Old 04-26-2003, 06:29 PM   #1
dbenamati
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differential gasket...anyone use silicone?

I am going to do my differential cover gasket over (leaking) and valve pan gaskets. I can find the valve pan gasket but not the differential gasket. A guy at the parts store said to just use a good grade of silicone since it isn't a high heat area and it will hold up. Anyone tried?

Thanks, Dave
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Old 04-26-2003, 06:43 PM   #2
Alex Hayley
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That's what I use...I think it was the red rtv or something like that...no leaks at all.
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Old 04-26-2003, 08:15 PM   #3
old Rusty C10
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ive used silicone too just make sure that both the cover and the differential are good and clean before ya silicone it with the permatex hi temp silicone gasket maker and sealant
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Old 04-26-2003, 09:03 PM   #4
mooneyes
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...used silcone many times get the ultra black...best damn silcone i've ever seen for sealing anything with oil....fixed my work boot with it once too...lol...
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Old 04-27-2003, 01:16 AM   #5
Alex
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I second Mooneyes4by's suggestion. Works great and it matches the color of the axle, too.
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Old 04-27-2003, 02:26 AM   #6
O'l Buck
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heck, till I started looking for rear end parts for my convertible, I didn't even know they made a gasket for rear diff covers......lmao
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Old 04-27-2003, 02:29 AM   #7
MAC67
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yeah im goin with mooneys they all work good but that ultra black out performs any thing ive ever used
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Old 04-27-2003, 03:22 PM   #8
Longhorn Man
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I got mine glued on too...been 2 years no problems. I think it is the only part of my truck that does not leak. (knock on woodgrain)
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Old 04-27-2003, 06:52 PM   #9
JJk10
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every article I ever read in hot rod and truck magazines never used the gaskets, always silicone. I never had problems with the silicone on any of my cars. just clean the two surfaces well.
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Old 04-27-2003, 07:17 PM   #10
jerry moss
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on most new trucks you can't even buy a differential gasket, they all use silicone. as stated before, use the ultra black and make sure both surfaces are spotless, any leftover oil residue and it will leak. we only use silicone at work and never have any problems--as long as it's cleaned properly prior to installation.
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Old 04-27-2003, 07:20 PM   #11
Dean23
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Ultra black is the way to go. Just drain the diff well and make sure the surface is clean and dry. Put the silicone on the cover being sure to make a circle around each bolt hole and then put it on.
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