Transfer Case Swap Info NP249->NP231 & NP242 - Page 11 - JeepForum.com

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post #151 of 3301 Old 10-07-2010, 07:55 PM
Slowride63
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Quote:
Originally Posted by JrMechanic View Post
Yep, should bolt right in as long as they both have an external rear slip yoke. You shouldn't really need the linkage either.
Thanks much for the info JrMechanic, that is definitely good news as the guy I bought this from ran the 242 dry until it ran no more and I doubt the input/planetary set is salvageable. Gonna save me some time and cash as well and thats always a good thing!


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post #152 of 3301 Old 10-08-2010, 12:12 AM
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Finding a cheaper 242 shouldn't be hard either. I paid $135 for mine, and have only seen a couple of junkyards that want more than $200.
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post #153 of 3301 Old 10-08-2010, 12:36 AM Thread Starter
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Some areas good parts at a decent price are more or less difficult to come by due to supply and demand. As I've said before, I have never paid more than $100 for a 231 or 242, but I would feel comfortable paying up to $250 for one. For $250 it had better be low mileage, already pulled, and CLEAN.

Some areas $250 is the bottom of the barrel, but there ARE deals out there, you just have to find them.

Oh, and when a yard tries to bend you over for $300+, laugh it off and give them a REAL offer. Odds are they're ignorant enough to mock you and will sit on the case. Sometimes you'll get lucky and speak with a yard jockey that realizes the case has been sitting on their shelf for years and isn't going anywhere at their asking price though, and that's when you get the best deals.

Want to swap an NP242 or NP231 into your ZJ? Here's how:

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post #154 of 3301 Old 10-08-2010, 09:56 AM
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so you wanna help me find that 242 this weekend and throw it in??
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post #155 of 3301 Old 10-08-2010, 10:25 AM Thread Starter
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so you wanna help me find that 242 this weekend and throw it in??
Not sure where you're at in Ohio, but after a quick search I came up with a 242 from a 97 ZJ with 124,000 miles for $99.95 here in Lima at Phoenix Auto Wrecking.

I'm not available the next couple of weekends, but if you're serious about an installation, I'm sure we could arrange something in the near future.

Want to swap an NP242 or NP231 into your ZJ? Here's how:

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post #156 of 3301 Old 10-08-2010, 02:33 PM
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I was wondering when this would get stickied
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post #157 of 3301 Old 10-12-2010, 11:28 AM
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I pulled a np242 out of a 92 xj at the junkyard this weekend. It seem to be in pretty good shape even if it was in a 150k miles jeep. Hope all will be ok when I open it.

I was wondering, when you remove the crossmember and support the transmission, is there a maximum at wich you can lower the drivetrain? I did lower it as much as I could on the xj, and didnt had any problem accessing the top bolts with a full size wrench. It didnt seem to break anything, but I would like to know if this is ok to lower the drivetrain that much?

Next step is to remove the np249 from my zj, but I would like to be be sure that I can do the same without damage to the motor or transmission...

Thanks again for your help !
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post #158 of 3301 Old 10-12-2010, 11:51 AM Thread Starter
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The exhaust is usually the limiting factor when lowering the drive train. Without the exhaust hooked up, you can lower the tail of the transmission all the way without damaging anything. Keep it supported though, you don't want it hanging off the engine mounts.

Want to swap an NP242 or NP231 into your ZJ? Here's how:

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post #159 of 3301 Old 10-12-2010, 11:56 AM
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Thank you JrMechanic, your answer is quite informative, as usual.
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post #160 of 3301 Old 10-12-2010, 01:51 PM
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I did as Jrmechanic said for my swap. Dropped the back end of the tranny as far as I could without taking the weight off the jack and putting it all on the motor mounts.
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post #161 of 3301 Old 10-12-2010, 02:28 PM Thread Starter
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I did as Jrmechanic said for my swap. Dropped the back end of the tranny as far as I could without taking the weight off the jack and putting it all on the motor mounts.
Almost too easy when you drop it enough to give yourself room to work, huh? Most people who have done the swap complain of the top nut, but I've never had any trouble fitting my standard size 9/16" ratchet wrench up there.

Want to swap an NP242 or NP231 into your ZJ? Here's how:

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post #162 of 3301 Old 10-12-2010, 02:30 PM
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It took a while, but with a professional mechanic helping, it wasn't too bad. Definitely had no trouble getting tools up there.

Of course, the case is coming out again in a week or 2 to change the tranny output seal. This time, it'll be me and another backyard mechanic or 2, probably doing this in a parking lot, rather than in a shop on a lift. Shouldn't be too bad now that I've been through it once before.
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post #163 of 3301 Old 10-13-2010, 11:09 AM
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just an option on the top bolts. wile i was doing the shafts and lower bolts. my friend was removing the center console and plate. that made it very easy to remove the upper bolts without dropping the cross member. and going back together he had it all back in by the time i was done underneath
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post #164 of 3301 Old 10-13-2010, 11:19 AM Thread Starter
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just an option on the top bolts. wile i was doing the shafts and lower bolts. my friend was removing the center console and plate. that made it very easy to remove the upper bolts without dropping the cross member. and going back together he had it all back in by the time i was done underneath
You can do this, but it's much easier just to remove the 4 bolts holding the cross member up.

Want to swap an NP242 or NP231 into your ZJ? Here's how:

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post #165 of 3301 Old 10-13-2010, 11:25 AM
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It's nice when the bolts back right out. I had issues on two different ZJ's where the bolts just spin & had to grind the heads off.

Jeff







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