Rear brake hose to differential bolt thread pitch?

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fly_25

Greasemonkey
Oct 20, 2020
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Seemed to have lost the bolt. Does anyone know the thread pitch of the bolt that goes here? It's for the brake hose. Thanks everyone!
 

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ELCAM

Royal Smart Person
Jun 19, 2021
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Catalog says it is a GM part Number 15630743. Poking around on the internet says it is 5/16X18X1 3/16 flange head bolt.
 
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fly_25

Greasemonkey
Oct 20, 2020
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Thanks! I've got a 5/16 bolt here somewhere, I'll check it out tomorrow
 

69hurstolds

Geezer
Supporting Member
Jan 2, 2006
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That's what I got as well. It's not just any old bolt, though, it has an extended shoulder on it. 8633207 and 1239146 are other numbers this bolt has.

PEG2-1.png


Luckily, AMK has this bolt under p/n B-13963.
 
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fly_25

Greasemonkey
Oct 20, 2020
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Interesting! Maybe so you don't over torque the bolt and crush the brake hose fittings
 
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78Delta88

Royal Smart Person
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May 23, 2022
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SW Arizona
ACE Hardware has the Allen head ones, might have the hex head.

McMaster Carr has all of them, Grainger too.
Screenshot_20221211-230344.png
 
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