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Np242 swap


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Bolts right in, only thing you’d “need” to change is the shift gate and the little panel with the zones on it. I have need in quotes because I’ve heard the 231 gate can be modified and if you know the pattern you don’t really need the plastic panel that tells you the pattern. Advantage is full time 4wd. Disadvantage is there isn’t as much aftermarket support.


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AWD is the best thing ever (although all types of AWD are not created equal).  My Liberty has the 242 and has been in AWD since '07.  well, except for a handful of lo-range escapades. :D 

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Double check the input spline counts.  Both cases can come in 21 and 23 spline inputs.  As long as they're the same, they're fine.

 

Bolt pattern is the same.

 

The shift gate is different as was mentioned.  It's a good time to upgrade to a Novak shifter for several reasons.

 

The speedometer sender should be the same.  Make sure though because I think they changed it around 1996.  It works the same but may have a different plug.  Also check the tooth count of the gear and make sure it matches (easy and cheap to get another if it doesn't).

 

The plug for the 4wd indicator switch adds an extra pin.  Easy enough to deal with though.

 

I don't know if the slip yokes are the same between the two but it would be a good idea to make sure.

 

The 242 hangs a bit lower than the 231 which will affect any skid plate you have for the transfer case, if you have one.

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45 minutes ago, derf said:

Double check the input spline counts.  Both cases can come in 21 and 23 spline inputs.  As long as they're the same, they're fine.

 

Bolt pattern is the same.

 

The shift gate is different as was mentioned.  It's a good time to upgrade to a Novak shifter for several reasons.

 

The speedometer sender should be the same.  Make sure though because I think they changed it around 1996.  It works the same but may have a different plug.  Also check the tooth count of the gear and make sure it matches (easy and cheap to get another if it doesn't).

 

The plug for the 4wd indicator switch adds an extra pin.  Easy enough to deal with though.

 

I don't know if the slip yokes are the same between the two but it would be a good idea to make sure.

 

The 242 hangs a bit lower than the 231 which will affect any skid plate you have for the transfer case, if you have one.

I do not have one. But I already have a speedo gear to match my pattern. But how would I check spline count?

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2 hours ago, SatiricalHen said:

Bolts right in, only thing you’d “need” to change is the shift gate and the little panel with the zones on it. I have need in quotes because I’ve heard the 231 gate can be modified and if you know the pattern you don’t really need the plastic panel that tells you the pattern. Advantage is full time 4wd. Disadvantage is there isn’t as much aftermarket support.


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I'll have to look into it a little.more 

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1 hour ago, Muncher said:

I do not have one. But I already have a speedo gear to match my pattern. But how would I check spline count?

What year/engine is yours and what year/engine is the donor.  That should be a good indication.

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8 minutes ago, Muncher said:

I haven't found a 242 just yet but my mj is a 87 4.0 with a 5 speed 

 

that means you'll need an early 242 if you want to mate to the Peugeot.  87-90ish XJ.  car-part.com might be able to find you one. 

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51 minutes ago, Pete M said:

 

that means you'll need an early 242 if you want to mate to the Peugeot.  87-90ish XJ.  car-part.com might be able to find you one. 

I've got dead jeep by me. I'm sure I can have him find me one. 

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