NP231J Transfer Case Kit?
CF Veteran
Joined: Nov 2008
Posts: 2,473
Likes: 9
From: Paso Robles Ca
Year: 1991
Model: Cherokee
Engine: 4.0
i'm runnin the 2.5L and 410 gearing in the axles but the 2.5 doesn't have enough power to push my 31x10.50 tires up some of the **** i'm goin through. i have to ride my clutch up the steepest ****. i have the 207 currently in my jeep but can aquire a 231...is it cost worthy to put the 231 in seein how there really isn't much of a gearing difference?
you find 4.88 axle gears from a gear company then pay someone to install them. you won't be able to install them (properly) yourself...it's a job for a pro who has the $850 worth of tools to do the job.
find a local club member here who can install gears, and offer to help him out with something, or work out an install deal. it's a tough project to do.
anyways you'd be looking at around $450-$600 for gears installed at a REALLY GOOD price. normal going price would be around a grand.
BUT deeper gears will be best for you in the long run anyways...you will have better all around response (and actually be able to hit 85 on t he highway)
find a local club member here who can install gears, and offer to help him out with something, or work out an install deal. it's a tough project to do.
anyways you'd be looking at around $450-$600 for gears installed at a REALLY GOOD price. normal going price would be around a grand.
BUT deeper gears will be best for you in the long run anyways...you will have better all around response (and actually be able to hit 85 on t he highway)
have you done gears before?
if you haven't, you WILL NOT get them done right. this is no slight against you...I have watched fully qualified pro's who've been doing it for years screw it up. it's tedious, time consuming, and repetetive.
and like I say, if you don't have every tool necessary, you will only get it within the ballpark. within the ballpark isn't a winning combination...you'll wreck the gears.
anyways, there are several good gear places online. being that I've never had to buy any, i don't have links. best someone who does know ask the question. my advice however on buying gears would be to call and order and talk with a tech about what you need, to make sure you don't get the wrong thickness ring or wrong cut gears.
have you done gears before?
if you haven't, you WILL NOT get them done right. this is no slight against you...I have watched fully qualified pro's who've been doing it for years screw it up. it's tedious, time consuming, and repetetive.
and like I say, if you don't have every tool necessary, you will only get it within the ballpark. within the ballpark isn't a winning combination...you'll wreck the gears.
anyways, there are several good gear places online. being that I've never had to buy any, i don't have links. best someone who does know ask the question. my advice however on buying gears would be to call and order and talk with a tech about what you need, to make sure you don't get the wrong thickness ring or wrong cut gears.
if you haven't, you WILL NOT get them done right. this is no slight against you...I have watched fully qualified pro's who've been doing it for years screw it up. it's tedious, time consuming, and repetetive.
and like I say, if you don't have every tool necessary, you will only get it within the ballpark. within the ballpark isn't a winning combination...you'll wreck the gears.
anyways, there are several good gear places online. being that I've never had to buy any, i don't have links. best someone who does know ask the question. my advice however on buying gears would be to call and order and talk with a tech about what you need, to make sure you don't get the wrong thickness ring or wrong cut gears.
don't try it your self if you are not prepared for the job
Thread Starter
Junior Member
Joined: Mar 2009
Posts: 41
Likes: 0
Year: '85
Model: Cherokee
Engine: 4.0L I6
there is a guy i work with that has been doing gears for years now so i will see if he can help me or guide me through it. thanks a bunch for the help it's much appreciated. i'll let you know how it turns out and what i end up doing.
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