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12-01-2020, 09:38 PM
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#1 |
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Registered User
 
Join Date: Jul 2015
Location: South Orange County CA
Posts: 1,265
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Rear diff cover gasket
Do you guys use any sealant on this gasket? It’s a paper gasket, not sure if it needs sealant or RTV.
Also, the bolts - do you guys use sealant on these? The threaded hole for these bolts go through into the differential.
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1963 C20, small window, long bed 292, 4-speed |
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12-01-2020, 09:48 PM
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#2 |
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Registered User
Join Date: Feb 2013
Location: central California
Posts: 2,781
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Re: Rear diff cover gasket
When I had my rear diff rebuilt at at shop they used sealant on both. Looks like the black stuff.
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12-01-2020, 09:49 PM
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#3 | |
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Registered User
Join Date: Jul 2015
Location: South Orange County CA
Posts: 1,265
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Re: Rear diff cover gasket
Quote:
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1963 C20, small window, long bed 292, 4-speed |
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12-01-2020, 10:23 PM
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#4 |
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Registered User
Join Date: Feb 2013
Location: central California
Posts: 2,781
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Re: Rear diff cover gasket
Sorry, no. Just that it's black
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12-01-2020, 10:26 PM
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#5 |
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Registered User
Join Date: Feb 2011
Location: Parkville, MD
Posts: 1,024
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Re: Rear diff cover gasket
Anytime I have a paper gasket, I smear RTV on both sides. Not really enough to squeeze out, just enough to fill in any imperfections.
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1970 C20 Custom Camper - 350, TH350 1997 GMC Suburban 1994 Acura Integra GSR 1987 Dodge Daytona Shelby Z |
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12-01-2020, 11:49 PM
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#6 |
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Registered User
Join Date: Feb 2012
Location: Beautiful BC, Canada, eh?!
Posts: 2,279
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Re: Rear diff cover gasket
I use Permatex Ultra Black, no gasket.
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1961 Apache: "Grabber Orange" Shortboxed, pancake, step-notch, air-ride, turbo, LS 1977 Silverado: Shortboxed & dropped, potato-potato V8 Pontiac Firefly (Chevy Sprint): The ultimate engine swap: 5.7L in a 1.0L bag Lotus Super 7 Replica: Scratch-built street-legal rollerskate |
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12-02-2020, 12:54 AM
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#7 | |
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Registered User
Join Date: Aug 2020
Location: Vacaville Ca
Posts: 13
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Quote:
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12-02-2020, 11:07 AM
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#8 | ||
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Registered User
Join Date: Jul 2015
Location: South Orange County CA
Posts: 1,265
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Re: Rear diff cover gasket
Quote:
Quote:
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1963 C20, small window, long bed 292, 4-speed |
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12-02-2020, 11:14 AM
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#9 |
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Registered User
Join Date: Aug 2020
Location: Vacaville Ca
Posts: 13
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I usually try to wait a couple hours but no not 24 hrs and never had any issue. Its all about how you lay your bead of rtv or some people like too smear the rtv.
Posted via Mobile Device |
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12-02-2020, 08:54 PM
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#10 |
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Registered User
Join Date: Jun 2019
Location: Milton PA
Posts: 2
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Re: Rear diff cover gasket
A little #2 Permatex will help seal things up if needed.
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