nut and bolt size (for leaf spring) - JeepForum.com
 
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post #1 of 10 Old 10-01-2008, 03:06 PM Thread Starter
frumpy
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nut and bolt size (for leaf spring)

Anyone know what size bolt and nut goes through the leaf spring and frame?


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post #2 of 10 Old 10-01-2008, 03:17 PM
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The ones for the frame-to-shackle and the shackle-to-spring are 1/2" x 4.5" fine (20) thread. I used Grade 8 course thread (13) when I replaced since it was all I could find.

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post #3 of 10 Old 10-01-2008, 03:27 PM
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Main eye bolts are 9/16", according to this write-up.

http://www.jedi.com/obiwan/jeep/greasebush.html

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post #4 of 10 Old 10-01-2008, 03:32 PM
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Main eye bolts are 9/16", according to this write-up.

http://www.jedi.com/obiwan/jeep/greasebush.html
They are. I didn't know these were the ones he was looking for.

I got a Jeep, it's lifted and it's got crap bolted to it.
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post #5 of 10 Old 10-01-2008, 03:35 PM
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Quote:
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They are. I didn't know these were the ones he was looking for.
Thanks for the verification!

I've had plenty of them out before, but I never had a reason to replace, or measure them so I was going on "what I found online" there. Good to know that it's accurate!

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post #6 of 10 Old 10-01-2008, 03:35 PM Thread Starter
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Well just looked at it a bit more and the bolt is fine (thought it was messed up but its not) so now I just have to figure out what sized nut (preferably without taking the bolt out).

I guess it would just be a 9/16 course thread bolt? Defiantly not a fine thread

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post #7 of 10 Old 10-02-2008, 03:31 PM
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It's a 9/16" bolt, this much I know. I'm not sure what the original was, since I hacked mine off when I installed the lift. I would have to guess it was a course thread, but just to make sure grab one of each.

Sorry I can't help more...

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post #8 of 10 Old 10-02-2008, 03:42 PM
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Fine thread would be 9/16-18, Course would be 9/16-12. The shackle bolts would be 1/2-20. All my bolts are fine thread.

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post #9 of 10 Old 10-02-2008, 03:44 PM
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It is a standard course thread. I replaced two main eye bolts when I did my lift.

-jeff

1995 YJ 4 cyl auto, 2" BDS springs, BDS shocks, and 1/2 lift boomerang shackles. 31" BFG Mud Terrain.
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post #10 of 10 Old 10-02-2008, 04:30 PM
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Come to think of it my main eye bolts are course thread. The shackles are fine thread.

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