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242 T-case

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Old Aug 24, 2008 | 11:17 AM
  #1  
subsnamps2's Avatar
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Default 242 T-case

Is a 242 T-Case any good? And when adding a lift do u have to have a SYE for that model?
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Old Aug 24, 2008 | 11:19 AM
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the 242 has only one advantage full time 4wd that allows you to run 4wd on dry pavement..The 231 from what I have read is generally a little stouter.

SYE need will depend on the jeep..every jeep is different only way to know is add lift if ya get deceleration vibes then you need an SYE or tc drop. If you get vibes only on acceleration then shim the rear and your good to go.
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Old Aug 24, 2008 | 11:30 AM
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THANKS! Is there anyway to tell what gears u have in ur rear end by the tag on them
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Old Aug 24, 2008 | 01:28 PM
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Originally Posted by subsnamps2
THANKS! Is there anyway to tell what gears u have in ur rear end by the tag on them

On the corner of the tag it will have a series of 3 numbers.



3 55 for a ratio of 3:55
3 73 " " 3:73

etc
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Old Aug 24, 2008 | 04:09 PM
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i'm at 3" of lift with a 242 and no drop or sye. besides the fact that i got through a u-joint at the axle every year its no big deal.

the 242 is actually stronger than the 231.
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Old Aug 24, 2008 | 04:18 PM
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Originally Posted by 93XJLI
the 242 is actually stronger than the 231.
I agree with that statement to a certain degree. The 231 can not sustain the wear that the 242 can without wearing many internal parts. Thus the 242 will last longer. But for actual strength the 231 has a stouter case and will stand a little more abuse that the 242. So they each have their pros and cons.

Overland is correct in his assessment of rear ratio tags. If the tag is missing you can jack it up and mark the driveshaft and a tire then turn the tire one revolution to approximate the number of turns of the driveshaft to figure your ratio.
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Old Aug 24, 2008 | 04:37 PM
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The NP242 transfer case has turned out to be stronger than expected. Most of our customers choose to retain their Jeep 242 with their conversions. It is very common for them to offer good service behind some of the strongest engines and transmissions...Interestingly, New Venture documents show the 242 as being rated at 1486 ft. lbs. of torque. This is probably determined based on Full-Time position usage. Experience would say that this is a very conservative number for all other positions.
http://novak-adapt.com/knowledge/np242.htm

The 242 is put behind V8 durangos, the 5.2 ZJ, and some full size chevys and dodges. The casing is exactly the same (except the bolt pattern) on both the 242 and 242HD, the latter is used behind H1s and H2s. You can upgrade your jeep 242 to the 242hd with a few parts.
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Old Aug 24, 2008 | 04:41 PM
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Thanks 93 that is a nice article which I had never read. I knew that the V8 Durangos had a version of the 242 but did not know about the Hummers.
Thanks for sharing!
Blue
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Old Aug 24, 2008 | 04:43 PM
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Old Aug 24, 2008 | 10:42 PM
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I'm at around 6+ inches of lift with a 242. I have a t-case drop, and I do not have any vibes at all from my drivetrain, except the MTs, but that's COOL!!
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