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440 Rear Main Seal Cap Fastener Size Needed #1684588
10/11/14 09:10 PM
10/11/14 09:10 PM
Joined: Apr 2012
Posts: 1,565
Macomb, MI
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vinnyd76 Offline OP
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vinnyd76  Offline OP
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Joined: Apr 2012
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Macomb, MI
I'm in the process of rebuilding my first engine and I'm not sure what size fasteners retain the rear main seal cap on a 440. I had to remove some RTV from the two fastener heads, but they do not appear to be SAE. Please refer to the photo. Any thoughts?

Last edited by vinnyd76; 10/11/14 09:11 PM.
Re: 440 Rear Main Seal Cap Fastener Size Needed [Re: vinnyd76] #1684589
10/11/14 09:24 PM
10/11/14 09:24 PM
Joined: Apr 2006
Posts: 3,675
Akron, Ohio U.S.A.
roadhazard Offline
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roadhazard  Offline
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Akron, Ohio U.S.A.
I believe they are 3/8" 12 point

Last edited by roadhazard; 10/11/14 09:26 PM.
Re: 440 Rear Main Seal Cap Fastener Size Needed [Re: vinnyd76] #1684590
10/11/14 09:24 PM
10/11/14 09:24 PM
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Posts: 2,655
western PA
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mopar4ya Offline
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western PA
3/8 12 point socket. Lol, just seen the post above, maybe I am incorrect, been awhile .

Last edited by mopar4ya; 10/11/14 09:26 PM.
Re: 440 Rear Main Seal Cap Fastener Size Needed [Re: mopar4ya] #1684591
10/11/14 09:32 PM
10/11/14 09:32 PM
Joined: Apr 2006
Posts: 3,675
Akron, Ohio U.S.A.
roadhazard Offline
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roadhazard  Offline
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Akron, Ohio U.S.A.
Quote:

3/8 12 point socket. Lol, just seen the post above, maybe I am incorrect, been awhile .





No, your "on point"...... had to check for myself. Thought is was 7/16" 12 point so I edited my post

Re: 440 Rear Main Seal Cap Fastener Size Needed [Re: roadhazard] #1684592
10/11/14 10:16 PM
10/11/14 10:16 PM
Joined: Apr 2012
Posts: 1,565
Macomb, MI
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vinnyd76 Offline OP
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vinnyd76  Offline OP
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Joined: Apr 2012
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Macomb, MI
Thank you for the quick response! I believe I was using a 6 point socket today. I will locate a 12-point socket tomorrow and try again.

Re: 440 Rear Main Seal Cap Fastener Size Needed [Re: vinnyd76] #1684593
10/11/14 11:24 PM
10/11/14 11:24 PM
Joined: Jan 2010
Posts: 588
Franklin, TN
23T Hemmee Offline
mopar
23T Hemmee  Offline
mopar

Joined: Jan 2010
Posts: 588
Franklin, TN
Make sure you get a good quality 12-point socket. This is a 3/8-16 bolt, usually torqued around 30 pounds, if you've already used the wrong socket you may have already rounded off some of the edges, the last thing you want to do is knock the edges off so that no socket fits, if that happens, the rest of your day will not be a happy one.....


Ronny
6.789 @ 198.63 **.956 Brand New 60'***
4.17@ 169 1/8th mile
John 14:6

https://www.youtube.com/watch?v=TUku_hjYRh8






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