np231 mounting stud size? - JeepForum.com

 
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post #1 of 12 Old 05-04-2012, 09:20 AM Thread Starter
janders82
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np231 mounting stud size?

I've been searching, but can't seem to find an answer...

Does anyone know what size the mounting studs are for the NP231 to bolt up to the AX-15?

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post #2 of 12 Old 05-04-2012, 09:33 AM
dadstoy
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The part that the t-case slides onto, the part sticking out, is a 3/8"-16, if I remember correctly, but the part that screws into the tranny is a different thread.
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post #3 of 12 Old 05-04-2012, 09:46 AM Thread Starter
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Originally Posted by dadstoy View Post
The part that the t-case slides onto, the part sticking out, is a 3/8"-16, if I remember correctly, but the part that screws into the tranny is a different thread.
thanks. i think i may have foud it.

double ended stud
3/8"-24SAE i believe is the end that screws in the TC

someone correct me if i'm wrong, but I believe the studs are:
3/8"-24SAE x 1" -- 3/8"-16USS x 5/8"
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post #4 of 12 Old 02-06-2013, 11:48 AM
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Quote:
Originally Posted by janders82 View Post
thanks. i think i may have foud it.

double ended stud
3/8"-24SAE i believe is the end that screws in the TC

someone correct me if i'm wrong, but I believe the studs are:
3/8"-24SAE x 1" -- 3/8"-16USS x 5/8"
This is the correct size. How do I know? I just replaced a few.


I know this thread is old, I just wanted to verify it for anyone who may encounter this later.

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post #5 of 12 Old 02-06-2013, 01:52 PM Thread Starter
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Quote:
Originally Posted by jeepsurf

This is the correct size. How do I know? I just replaced a few.

I know this thread is old, I just wanted to verify it for anyone who may encounter this later.
Its been a while, but i believe i found it somewhere on a NP231 diagram online. Went to the dealer to order the part an matched it up with their specs. Fit perfectly

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post #6 of 12 Old 02-06-2013, 02:26 PM
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I have question. I have 2 broke studs which broke during shipping. Any advice on getting these broke ones out. I drilled - and tried to use a easy out on 1 stud but the easy out broke. How many can you be missing and still be ok. The ones that are broke are side by side. Which I don't. Like the idea of running it with these 2 missing.

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post #7 of 12 Old 02-07-2013, 08:49 AM
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Seeing as how the case is out of the jeep. Weld a bolt to the broken stud, use PB blaster on the broken stud and let soak, repeat and then remove. Been there done that!
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post #8 of 12 Old 02-07-2013, 09:02 AM
muddigger0829
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That would be a great idea if there were enough meat hanging out. Broke almost flush. I'm going to try soaking with pb drill heat and try an ex out again. Maybe with pb and heat I won't break another ezout. Last try too. If I break another one ill have to get another front half.

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post #9 of 12 Old 02-07-2013, 09:12 AM
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Good luck. You might go to a small machine shop and see what they would charge to get them out.
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post #10 of 12 Old 07-16-2013, 10:22 PM
zjosh93
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Weird, it should be a common Dorman part. I think 675-003 should work depending on how long the shoulder length is.

http://www.dormanproducts.com/catalo...ec17_Part1.pdf

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EDIT: Just realized that I posted this in the old thread. That's what I get for having so many JF tabs open at once.
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post #11 of 12 Old 07-16-2013, 11:03 PM
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Quote:
Originally Posted by janders82 View Post
I've been searching, but can't seem to find an answer...

Does anyone know what size the mounting studs are for the NP231 to bolt up to the AX-15?
It's a double-ended stud.

The part that threads into the case is threaded 3/8"-16, the end that accepts the nut is threaded 3/8"-24.

(There are sound engineering reasons for doing so, but there isn't enough force here for them to apply.)

The studs may be removed and replaced with threaded rod (3/8"-16) and nuts to match, or you may use a hardware store stud threaded 3/8"-16 - as long as the center section isn't too long to allow for proper clamping with the nuts.

www.kelleyswip.com/tech.html, follow the links.

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post #12 of 12 Old 07-17-2013, 06:19 AM
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Quote:
Originally Posted by muddigger0829 View Post
That would be a great idea if there were enough meat hanging out...
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TMI

Quote:
Originally Posted by muddigger0829 View Post
....try an ex out again.
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This is never a good idea. Even if it's just an occasional "hookup" they tend to get clingy and want to get back together. Just remember why they're an "ex"

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Until you know exactly what is underneath the, well, not really sure what to call them...mistakes...it's hard to come up with a plan of action.
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