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#2600470 - 09/22/12 11:01 PM rear differential gasket
tiburonsvh Offline
Member

Registered: 01/14/12
Posts: 115
Loc: Lincoln, NE, USA
planning work out on car but can't remember what sealer...gasket maker...whatever i need to re-seal the cap on...anyone got recommendations or know what I'm looking for?
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'06 P71 Crown Vic from Grand Island, NE
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#2600473 - 09/22/12 11:10 PM Re: rear differential gasket [Re: tiburonsvh]
Black_Sunshine Offline
Poobah

Registered: 12/09/10
Posts: 9687
Loc: AZ
RTV, in a color of your choice because heat isn't really a factor back there.

Personally, I've never been a fan of RTV. I've never been good with it. Maybe I was using it back before I learned a lot of other things. Either way I prefer to use a gasket whenever possible. When I changed the oil in my diff I used a Felpro gasket. It was a rather plain and cheap looking gasket. It was less than $10. I figured that it was about the same cost as the RTV. The biggest thing with it not leaking in the future is correct and even torque. I'm glad I used the gasket because next time the job will be a snap because there is no old RTV to remove.
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2005 Grand Marquis GS Two Tone Edition

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The GS Two Tone Package includes:
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� LS style body side moldings
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#2600475 - 09/22/12 11:11 PM Re: rear differential gasket [Re: tiburonsvh]
BigMerc96 Offline

I know nothing
Posting Addict

Registered: 06/05/10
Posts: 19868
Loc: I can see Detroit from here!
I just went to AutoZone and got a Fel Pro cover gasket. Otherwise black RTV should do the trick. There is no pressure or heat (well not alot of heat) so it doesn't take much to seal them up.
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-Steve

2006 Audi A6 ~132k miles, stock.
1998 Mercury Grand Marquis LS HPP ~100k miles, slowly acquiring modifications.
1997 Town Car Cartier ~145k miles, Ported Plenum, Gutted Airbox, Contour E-fan Retrofit, Dual exhaust with Magnaflows, cats deleted, MSD Ignition, KYB Gas-A-Justs, P71 front bar, air ride reinstated, Projector retrofit, Caddy 4-note horn retrofit, Wood rim steering wheel retrofit, holistic weight reduction as the parts fall off..
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#2600477 - 09/22/12 11:29 PM Re: rear differential gasket [Re: tiburonsvh]
Rizzo Offline
J-MOD Master
Metroplectic

Registered: 03/06/04
Posts: 29215
Loc: Romulus,MI
I like RTV. I've done about 4 Diff cover drops. I like that I don't have to fidget around to get the gasket lined up.

BUT, If you prefer a rigid gasket then get a Fel-Pro like BM96 suggested. They make great gaskets.
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#2600482 - 09/22/12 11:53 PM Re: rear differential gasket [Re: tiburonsvh]
Black_Sunshine Offline
Poobah

Registered: 12/09/10
Posts: 9687
Loc: AZ
I use this Loctite product for gaskets:
http://www.amazon.com/Loctite-39158-Hi-T...=loctite+gasket
That is, when I can find it. When I can't find it I usually will tack it on there with a tiny bit of grease from the grease gun. I don't put anything on the silicone ones of course.
_________________________


75mm DBW TB

Click to reveal...

2005 Grand Marquis GS Two Tone Edition

Vibrant White over Arizona Beige

The GS Two Tone Package includes:
� hood ornament
� c-pillar emblems
� LS style body side moldings
� body color mirror caps (the b-pillars are body color too, but I don't know if that is package specific)
� two tone interior (mine is leather and includes embossed logos on the seats)
� front door sill plates that say �Grand Marquis�

CarDomain

Facebook


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#2600608 - 09/23/12 11:15 AM Re: rear differential gasket [Re: tiburonsvh]
RF_Overlord Offline

Poobah

Registered: 12/14/02
Posts: 7345
Loc: MA
Victor Reinz RDS55341 from CarQuest. Cork over a metal frame.
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Trilogy Motorsports supercharged #61
Too many mods to list / Driveway Queen

'04 Grand Marquis LS Limited Edition (Spruce Green)
Daily Driver (Thanks, Adam!)

'00 Grand Marquis GS (Silver)
Rotted frame and broken transmission crossmember
Being resurrected...slowly.

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#2601807 - 09/26/12 12:49 AM Re: rear differential gasket [Re: tiburonsvh]
SPM Offline
Over the Hill

Registered: 09/10/09
Posts: 1501
Loc: Minnesota
The best gasket-in-a-can you'll ever find is Permatex "The Right Stuff". I sealed up my differential with that when I changed the fluid, and I used it to seal the oil filter adapter to engine block connection when I deleted my oil cooler. Neither area leaks in the slightest. Used it on other vehicles too, and not once has it EVER leaked.
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2008 Grand Marquis LS, 138K miles
2014 Chrysler 300C, 97K miles (sold)
2005 Grand Marquis LS, 145K miles (sold)
2000 CVPI, 229K miles (sold)

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