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  #1  
Old January 1st, 2018, 14:40
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88 MJ front shaft length issues

When I swapped my HP 30 in my XJ to my LP 44, I used the same front driveshaft. I just put the same LP 44 in my MJ, and the front driveshaft is too long! Do 242s and 231s have different length front outputs?
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  #2  
Old January 1st, 2018, 15:40
Strokermjcomanche Strokermjcomanche is offline
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Re: 88 MJ front shaft length issues

Are the XJ/MJ both stick or auto ?
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Old January 1st, 2018, 16:32
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Re: 88 MJ front shaft length issues

Both Autos. MJ is an 88, my XJ was an 87.
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Old January 1st, 2018, 21:11
Strokermjcomanche Strokermjcomanche is offline
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Re: 88 MJ front shaft length issues

I'm not sure what to tell you . I have 3 MJs , 2 have 231s and one has a 242 . The 2 autos have the same driveshafts and the two different tcase. The manual 231 MJ has a shorter front shaft , which may fix your problem.
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Old January 2nd, 2018, 07:19
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Re: 88 MJ front shaft length issues

Found the answer. 242 is a little longer, pushing the front output back which makes the difference.
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'88 MJ on 235s a.k.a. "Mary Jane"
'87 XJ Wagoneer on 235s 1987 - 2017 RIP
'95 ZJ on 31s (DD) and a '16 EcoBeast tow rig
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Old January 3rd, 2018, 15:54
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Re: 88 MJ front shaft length issues

Interesting. I did not know that. Good info since I will be swapping a 242 into my MJ and a 231 into my xj. Thanks.
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88 XJ Laredo 8" RE SA, drop brackets, 35s D30/44 4.56, AW4, 242, 7100s, Loganís ft winch bumper, JCR swing out tire carrier, JCR sliders, 96 booster, 97+ mirrors & console (FOR SALE)
99 XJ Limited, AW4, 242, Colombia Edition WJ Seats, Stock. Future 4.5" lift, TnT LA, 33s armor, 231 SYE, D30/44 4.56, rear locker, etc
93 XJ 2 Door AX-15 D30/8.25 3.55 swap, (FOR SALE)
92 MJ AW4 2wd, 97 mirrors. Future 4wd swap, 242, MJ 44, Eliminator Roll bar, Bucket seats, 97+ console
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Old January 8th, 2018, 11:47
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Re: 88 MJ front shaft length issues

Quote:
Originally Posted by Goose_XJ88 View Post
Interesting. I did not know that. Good info since I will be swapping a 242 into my MJ and a 231 into my xj. Thanks.
You shouldn't need new shafts for either one.
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J.R. Member #1200
'88 MJ on 235s a.k.a. "Mary Jane"
'87 XJ Wagoneer on 235s 1987 - 2017 RIP
'95 ZJ on 31s (DD) and a '16 EcoBeast tow rig
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Old January 9th, 2018, 11:42
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Re: 88 MJ front shaft length issues

I'll need a new shaft for my xj bc the comanche is a 2wd currently.

I do have a stock 231 driveshaft from annother jeep but it has a manual so that probably changes things there too... lol
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88 XJ Laredo 8" RE SA, drop brackets, 35s D30/44 4.56, AW4, 242, 7100s, Loganís ft winch bumper, JCR swing out tire carrier, JCR sliders, 96 booster, 97+ mirrors & console (FOR SALE)
99 XJ Limited, AW4, 242, Colombia Edition WJ Seats, Stock. Future 4.5" lift, TnT LA, 33s armor, 231 SYE, D30/44 4.56, rear locker, etc
93 XJ 2 Door AX-15 D30/8.25 3.55 swap, (FOR SALE)
92 MJ AW4 2wd, 97 mirrors. Future 4wd swap, 242, MJ 44, Eliminator Roll bar, Bucket seats, 97+ console
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Old February 7th, 2018, 13:34
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Re: 88 MJ front shaft length issues

Had the front shaft shortened 2 inches. Works perfectly.
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'88 MJ on 235s a.k.a. "Mary Jane"
'87 XJ Wagoneer on 235s 1987 - 2017 RIP
'95 ZJ on 31s (DD) and a '16 EcoBeast tow rig
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