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Juggernaut 03-19-2010 07:00 PM

Busted 231 J transfer case
First post... wish it was under better circumstances

Hey, I have an 04 wrangler sport straight 6 automatic. Driving on the interstate today it decided to break in half so Im in need of a replacement. Does anybody know a good place online to order a replacement?

Im in the peoria IL area, and Id like to get it from someplace as fast and cheap as possible.

Jerry Bransford 03-19-2010 07:11 PM

I'd first check the various Jeep forum For Sale areas, then Craigs List, then eBay. Just make sure it's for a '97 or newer 4.0L to get the right spline count, and for an automatic as the 231 has a slightly different input shaft length dimension when it is set up for an automatic.

The 231 used in a Jeep is often known as a 231J (for Jeep). Good luck, that's too bad your t-case broke like that which is not common at all. My 231 transfer case had a tough life over 183,000 miles & it held up well that entire time without problem.

And a big welcome to WF, good luck with it! :)

03 RUBI 03-19-2010 07:12 PM

Search the web for "Jeep parts recyclers" or "used Jeep parts". We have a good one here in California called J&W Auto Wreckers and they only do Jeeps. I'm sure you can find one closer to IL. though.

Juggernaut 03-19-2010 07:34 PM

Transfer Case

couldnt find anything ebay or craigs list. Is this what I want?

jdhallissey 03-19-2010 07:45 PM

I will give you mine for 700 bucks :) I would drive it to you for 50 bucks hehe

jdhallissey 03-19-2010 07:47 PM

If one out of a YJ will fit I know of a few of them in the junk yard up here. I could go look tm for ya.

Juggernaut 03-19-2010 07:50 PM

Are you sure what you have is what I need?

jdhallissey 03-19-2010 07:54 PM

I know my tcase will bolt into your jeep just fine. I was just screwing with you on the price because a buddy of mine wants me to buy his 4 to 1 tera low kit complete for that price lol. I think Jerry knows if the YJ t-case bolts up, if it does I can run to the junkyard tm morning, there is a YJ there I am pretty sure the t-case is still there. I would only make ya pay what is cost to buy at the junk yard and then however we get it too you. Shipping it or me driving.

jdhallissey 03-19-2010 07:57 PM

You can get a new one for 900 bucks.

ccain 03-19-2010 08:01 PM

WOW... I've only ever seen one t-case break in two. It was on a Cherokee owned by the WV Dept of Natural Resources. He was chasing a poacher and shifted into 4lo at over 60 MPH. :eek:

jdhallissey 03-19-2010 08:03 PM

Cain you know if a YJ case will bolt in without issue?

Juggernaut 03-19-2010 08:04 PM

Yeah man, If you could check that out at the junk yard for me I would be extremely grateful as long as the YJ t-case just bolts up.

jdhallissey 03-19-2010 08:05 PM

i remember somebody doing it- hmm -- I also have a buddy in AZ that has the 4 to 1 kit that he wants to sell. So you would be getting a kick ass t-case with a nice crawl ratio that will work too. Let me call him.

ccain 03-19-2010 08:06 PM

I'm sure it'll probably bolt up BUT... And here's the but. I'm pretty sure the 4x indicator switch on the YJ uses vacuum where as the TJ is electronic. I know the 231 has like 2 electrical connectors where as the YJ transfer doesn't.

Jerry Bransford 03-19-2010 08:13 PM

A YJ 231 may fit if it's for the 4.0L and for the same transmission but personally, I would not even consider one from a YJ. The TJ's transfer case was improved in several areas, enough so that I would stick with one out of a TJ. :)

jdhallissey 03-19-2010 08:16 PM

That is what I was thinking too. I forgot about the light- mine doesn't work lol I like it that way.

Juggernaut - I texted my buddy and I will see what he wants for his.

Juggernaut 03-19-2010 08:16 PM

Ill probably just end up getting one from the link I posted on post #4. Can anybody confirm for me that thats what I need. Sorry, Im not too familiar with parts for my jeep even though I've had it for six years. haha

jdhallissey- Yeah just let me know what your friend says. I wont even be able to order anything until monday so well just play it by ear.

Also, is there a difference in what I would need since mine is an automatic. I think I read there is a difference between what you would need depending on if its manual or automatic.

jdhallissey 03-19-2010 08:19 PM

Check jeepforum too. Guys are selling there old when they go to the 3/4 speed t-cases

Jerry Bransford 03-20-2010 10:39 AM


Originally Posted by Juggernaut (Post 576309)
Also, is there a difference in what I would need since mine is an automatic. I think I read there is a difference between what you would need depending on if its manual or automatic.

Yes, there's a difference. If you bolt a 231 that was configured for the 5-speed up to your automatic, your automatic will leak ATF like a sieve. That is because that kind of 231 has a shorter intput shaft that doesn't extend far enough into the automatic to seal the automatic. If absolutely necessary, you can install an extended output shaft seal (available from Summit Racing, Teraflex, Advance Adapters) into your automatic so a 231 from a 5-speed would work without your auto tranny leaking.

fanslau 03-21-2010 12:26 AM

go to and see if they have on its a wrecker only for jeeps and ship world wide and have GREAT prices!!

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