Transfer Case Swap Info NP249->NP231 & NP242 - Page 21 - JeepForum.com

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post #301 of 3147 Old 02-28-2011, 10:19 AM
mark4370
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Quote:
Originally Posted by Grandplans

It works great! Been driving around all day. No leaks. It looks like the rear trany seal to the edge of 242 shaft is about 3/16". A little close, but keeps the fluid in. So, if you're using a .750 length shaft where you had a .840 before, it shouldn't be a problem. This of course is all behind a 42re trany.
You say that .840 is what I need? And .840 is in thousands ? That's under a 1" right it looks longer than that.

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post #302 of 3147 Old 02-28-2011, 11:05 AM
mark4370
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Quote:
Originally Posted by mark4370

You say that .840 is what I need? And .840 is in thousands ? That's under a 1" right it looks longer than that.
That's is the overall length of the shaft?
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post #303 of 3147 Old 02-28-2011, 07:45 PM
Erbo1Kanerbo
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not the driveshaft, hes talking about the input shaft

ZJ Build thread:
http://www.jeepforum.com/forum/f197/...build-1024680/


ZJ's: If you dont know what it is you cant afford it.
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post #304 of 3147 Old 03-01-2011, 03:53 AM
mark4370
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That's what u ment sorry. I just want to make shore I get the right transfercas whenever I go and get it. I want to now the overall length of the output shaft.
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post #305 of 3147 Old 03-01-2011, 11:24 AM
Grandplans
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Page 1 and first post on this whole thread has some great information on input shaft lengths, years, etc... This should help you identify what ZJ vehicle to look for. It even talks about your DS (drive shaft). JrMechanic was right on with the information. If you have an input shaft longer than 1", it probably will not work in your '97 ZJ unless you do the input shaft swap making sure you take into account the gear cut change in '94.5. You said you have a '97 ZJ, I6 and 42re trany with a 249 tc in it. That is identical to my ZJ and the 249 that I pulled out of it had a .840 length input shaft (exactly what JrMechanic said it would be).
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post #306 of 3147 Old 03-05-2011, 11:37 AM
GUMPOND
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Great post!!! Got my 231 ready to go in.
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post #307 of 3147 Old 03-15-2011, 12:23 PM
jbrink
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96 ZJ 249 to 242

I've read through all of these posts and just wanna make sure. If I want to put a 242 in my ZJ, I can use one out of any 96-98 ZJ? Is there any chance of having different slip yokes or input shafts or anything? I was gonna replace the VC but it seems like switching to a 242 will be easier and actually better with the 2HI option. Thanks for the help.
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post #308 of 3147 Old 03-15-2011, 12:43 PM
speedbucket
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should be a direct bolt up from the way i understand it

http://www.jeepforum.com/forum/f22/speedbuckets-zj-build-1361322/
V8 zj at 6" . Double tri rear and true 3 link front. Stretched to 108"
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post #309 of 3147 Old 03-15-2011, 05:00 PM
squazz
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i pulled the(Stamped 92-93) 231 out of my 93 today and it has a huge 4 prong 4wd switch and the (Stamped 93-94)231 with the SYE im putting in has the 2 prong 4wd switch any reason why? both input gears seem the same 23 spine

one had a green speedo gear and one had a orange speedo gear
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post #310 of 3147 Old 03-15-2011, 10:20 PM
PlatinumNiner
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Swap the switches and speedo gears over from the OEM case to the doner case.
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post #311 of 3147 Old 03-16-2011, 07:22 PM
squazz
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Quote:
Originally Posted by squazz View Post
i pulled the(Stamped 92-93) 231 out of my 93 today and it has a huge 4 prong 4wd switch and the (Stamped 93-94)231 with the SYE im putting in has the 2 prong 4wd switch any reason why? both input gears seem the same 23 spine

one had a green speedo gear and one had a orange speedo gear
Quote:
Originally Posted by PlatinumNiner View Post
Swap the switches and speedo gears over from the OEM case to the doner case.
well that was a fail the 231/sye will not shift with the bigger connector and the smaller connector is only 2 prong and not 4 prong but shifts fine what do i do?
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post #312 of 3147 Old 03-16-2011, 10:37 PM
PlatinumNiner
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Looks like your using the wrong case for your swap
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post #313 of 3147 Old 03-17-2011, 06:46 PM
squazz
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Quote:
Originally Posted by PlatinumNiner View Post
Looks like your using the wrong case for your swap
no not the wrong case had to crack it open again and swap out the shifter pattern thingy in side now all is good
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post #314 of 3147 Old 03-18-2011, 09:13 AM
cp1109
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Does the imput shaft lengths matter or no my spline count is right but not the length? I'm not able to put my sun gear into the 231 cause of the different gears my 231 is a 92 my 249 is a 95. I called transfer case adapters and the guy told me the only important thing is the spline count not the lenght.
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post #315 of 3147 Old 03-18-2011, 09:21 AM Thread Starter
JrMechanic
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Quote:
Originally Posted by cp1109 View Post
Does the imput shaft lengths matter or no my spline count is right but not the length? I'm not able to put my sun gear into the 231 cause of the different gears my 231 is a 92 my 249 is a 95. I called transfer case adapters and the guy told me the only important thing is the spline count not the lenght.
"The guy" is wrong. Find a different case for the swap.

Want to swap an NP242 or NP231 into your ZJ? Here's how:
http://www.jeepforum.com/forum/f13/n...pdated-685644/
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