NP231 chain

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len1xj
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NP231 chain

Post by len1xj »

I am rebuilding my np231. does anyone know how wide the chain is? I have a 1998 jeep xj. I was told it could be 1 or 1.25 inch. :?:
Randy Bobandi
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Re: NP231 chain

Post by Randy Bobandi »

NP231J all have 1" chains
len1xj
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Re: NP231 chain

Post by len1xj »

what is the difference between a np 231 and a np231j?
Randy Bobandi
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Re: NP231 chain

Post by Randy Bobandi »

NP231J - NP231 JEEP - 1" chain

NP231D - NP231 DODGE - 1.25" chain

You can install the 1.25" chain in the Jeep case as long as the Dodge sprockets are installed as well.
Torqsplit
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Re: NP231 chain

Post by Torqsplit »

len1xj
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Re: NP231 chain

Post by len1xj »

Thank you
len1xj
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Re: NP231 chain

Post by len1xj »

mmmm I don't mean to sound like a dummy, but I don't get the 6 pinion low range planetary. what is the difference between that in putting in a 4:1 low range in the transfer case? do you have more of a range of gears to pick from?
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Re: NP231 chain

Post by Mike B »

6 pinion planetary gears are double the strength of the stock np231j since they have a 3 pinion planetary gear. Still same gear ratio as 2.72:1.

While a 4:1 conversion for np231 will reduce gearing, they are not necessarily stronger. With that, I dont believe there is anyone that produces a 4:1 kit for the np231 anymore since they were notorious for grenading.
len1xj
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Re: NP231 chain

Post by len1xj »

Thank you.
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