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Unread 10-22-2009, 05:31 AM   #1
daphne
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Transfer Case Swap 98 ZJ: 249 Out, 242 In

OK so I'm about to do this. As you all recommended, I'm dumping the 249 and installing a 242.

There's only one 1998 in my local junkyard with Selec-Trac but there are plenty of other model years with Selec-Trac. Rather than having to deal with the spline matching issue, my mechanic will have my 98 on one lift and a donor ZJ on the other. He will take the shafts and transfer case from the donor vehicle and install them in mine.

Please advise me what model years will be OK for this complete swap so I can get a better (selec)tion at the yard. Thank you!

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Unread 10-22-2009, 06:07 AM   #2
Area.3.Fiftyone
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Not again......

SEARCH God damn it!
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Unread 10-22-2009, 07:05 AM   #3
daphne
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O My!

Jeese, IronMaiden! I HAVE been searching all morning and have not been able to find the answer. There's a LOT of information about matching splines and making a selection between 242 and 231 and where to go to get the proper shafts but THERE'S NOT ONE definitive answer to my question that I thought was pretty simple. Perhaps instead of screaming at me you would answer it?

For someone who's really an expert I think this is a one-sentence no-brainer.
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Unread 10-22-2009, 07:51 AM   #4
KHoff90
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Any year ZJ will work, but I believe 96+ is your best bet.
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Unread 10-22-2009, 08:20 AM   #5
daphne
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Thank you, bball128. So I can swap all the parts from a 98 selec-trac at the yard into my 98 quadra-trac without worrying about splines and length of shafts? That sure would be a blessing!
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Unread 10-22-2009, 08:24 AM   #6
KHoff90
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You should be fine if you're swapping from a 98 to another 98. I think all you need is the rear drive shaft though when swapping transfer cases - at least I did. The rear output shaft was about an inch longer on the 242 than my 249.

Any 96+ should work ok for this too; there's something about the 93-95 that is different, but I can't remember exactly what. I'll try and look this up for you. Hopefully someone with a little more knowledge can tell you for sure.
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Unread 10-22-2009, 08:29 AM   #7
gbauer
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Quote:
Originally Posted by bball128 View Post
there's something about the 93-95 that is different, but I can't remember exactly what. I'll try and look this up for you. Hopefully someone with a little more knowledge can tell you for sure.
TC input spline length is different.

I had to swap my input shafts from my d-e-d 247 to the 242 when I did mine.
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Unread 10-22-2009, 08:46 AM   #8
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Quote:
Originally Posted by bball128 View Post
You should be fine if you're swapping from a 98 to another 98. I think all you need is the rear drive shaft though when swapping transfer cases - at least I did. The rear output shaft was about an inch longer on the 242 than my 249.

Any 96+ should work ok for this too; there's something about the 93-95 that is different, but I can't remember exactly what. I'll try and look this up for you. Hopefully someone with a little more knowledge can tell you for sure.
The 93-95 have a 46rh tranny which requires the longer 1.55 inout shaft.
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Unread 10-22-2009, 08:53 AM   #9
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The 93-95 have a 46rh tranny which requires the longer 1.55 inout shaft.
Ahh that's it, thanks! And there you go daphne
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Unread 10-22-2009, 09:36 AM   #10
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Quote:
Originally Posted by daphne View Post
OK so I'm about to do this. As you all recommended, I'm dumping the 249 and installing a 242.

There's only one 1998 in my local junkyard with Selec-Trac but there are plenty of other model years with Selec-Trac. Rather than having to deal with the spline matching issue, my mechanic will have my 98 on one lift and a donor ZJ on the other. He will take the shafts and transfer case from the donor vehicle and install them in mine.

Please advise me what model years will be OK for this complete swap so I can get a better (selec)tion at the yard. Thank you!
Hey dude, you should fill out your profile so that we know what we are dealing with here. (not like ill see whether or not its a zj or wj... since i have trouble with that... LOL)

As said before, 98 to 98 should be a direct bolt in. You may need to shorten the rear ds...

Yard
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Unread 10-25-2009, 06:30 PM   #11
daphne
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Thank you, all! I'm going to try to coordinate this for this coming week. I'll post afterwards.
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