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Unread 12-31-2013, 04:35 PM   #1
bigbossd1030
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Np231 front yoke

I am in need of a new front yoke for my np231.
Some may have read my other thread about my ujoint coming loose and taking out a few things. Well I am at the point of a new yoke, but finding one is becoming difficult.
So I plan to hit up the local pick and pull.
But they have no wranglers and only one XJ. Unsure of engine size and what xcase and tranny it has. I have been doing some reading online and haven't gotten a straight answer on the subject, I've seen a lot of cv mods and questions regarding full xcase swaps, but nothing about just the front yoke.

So here is my question, does anyone know what vehicles of what year will have an np231 that the front output yoke will fit in my np231?
With the stock D30 in the front.
I haven found a list, just vague statements saying some jeeps, dodge and gm have used the np231 or a close recreation of it.
Any help would be greatly appreciated.

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Unread 12-31-2013, 05:09 PM   #2
The_Goob
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I know there is a 231c for chevy, but no clue what vehicles had it. If you get to the end of your rope and cant find one, PM me. I have an extra 231 in the backyard. saving it for parts/just in case but I could probably part with yoke. Shipping to canada is another story lol
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Unread 12-31-2013, 05:27 PM   #3
bigbossd1030
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Thanks for the offer and I will keep you in mind.

I thought if I found the part on quadratec maybe it would say what years it is comparable with, but all it says is wrangler.
I'm still searching though, it would be nice to know a bit more than dodge, Chevy and jeep before I go through three feet of snow checking every vehicle matching that description.
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Unread 12-31-2013, 11:30 PM   #4
bigbossd1030
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So after some further digging. It looks like all the D30 axles have the same yoke. So that broadens my search a fair bit. Thank you all for the offers I have received for yokes. I will keep you posted after we go to pick and pull tomorrow. I would have jumped right on the offers, but I am really hoping to have the jeep going this weekend. Thanks again.
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Unread 01-01-2014, 07:14 AM   #5
LilViper95
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You need to be sure the front transfer case yoke has threads in it for the straps and bolts. Xj's and tj's use a cv front drive shaft and the front yoke is different. The holes have no threads as the bolts go thru the yoke and thread into the cv on the drive shaft. If you are talking the front axle yoke then they are all the same.
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Unread 01-01-2014, 07:56 AM   #6
gorilla_skater
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Quote:
Originally Posted by LilViper95 View Post
You need to be sure the front transfer case yoke has threads in it for the straps and bolts. Xj's and tj's use a cv front drive shaft and the front yoke is different. The holes have no threads as the bolts go thru the yoke and thread into the cv on the drive shaft. If you are talking the front axle yoke then they are all the same.
X2

XJ and TJ are not the same as a YJ because they have CV driveshafts.

I just swapped the front yoke on my YJ 231 to a TJ so I could use a TJ CV front driveshaft. This was to reduce vibes because I did the CAD delete.
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Unread 01-01-2014, 10:59 AM   #7
bigbossd1030
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Thanks for that guys, I think I'll pull one from an axle. Should e easier to find I think.
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Unread 01-01-2014, 01:46 PM   #8
LilViper95
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I don't know if the front axle yoke will work on your transfer case
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Unread 01-01-2014, 01:58 PM   #9
bigbossd1030
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Quote:
Originally Posted by LilViper95
I don't know if the front axle yoke will work on your transfer case
I think you may be right... I think the np231 output is 27 splines isn't it? And the pinion is 26 splines. Facepalm, it's never that easy.
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Unread 01-01-2014, 03:32 PM   #10
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http://www.cfoffroad.com/index.html
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Unread 01-01-2014, 03:52 PM   #11
bigbossd1030
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Quote:
Originally Posted by jsawduste
Thanks for that link sawdust, but it looks like a fellow Jeeper is coming to the rescue!
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Unread 01-01-2014, 04:45 PM   #12
jbolty
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I swapped the yoke on my T-case as well as the axle for a dana 44 yoke, it has the ubolt type drive shaft connections and fits both places. No idea if every 44 yoke from every version and year will work but the first one I grabbed fit
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Unread 01-01-2014, 04:46 PM   #13
bigbossd1030
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Quote:
Originally Posted by jbolty
I swapped the yoke on my T-case as well as the axle for a dana 44 yoke, it has the ubolt type drive shaft connections and fits both places.
so your dana 44 yoke fits both the axle (what axle?) and the xcase? So the splines are indeed the same?
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Unread 01-01-2014, 05:53 PM   #14
jsawduste
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Go to Yukon's web site and use the Diff Wizard. Lots of information and you can compare parts.
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Unread 01-01-2014, 05:56 PM   #15
bigbossd1030
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Quote:
Originally Posted by jsawduste
Go to Yukon's web site and use the Diff Wizard. Lots of information and you can compare parts.
cool! Thanks!
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