NP231 swap from np241OR - JeepForum.com

 
LinkBack Thread Tools
post #1 of 4 Old 11-22-2010, 08:24 AM Thread Starter
yogi250cc
Registered User
2006 TJ Wrangler 
 
Join Date: Jun 2006
Location: Atlanta
Posts: 31
NP231 swap from np241OR

Okay,
I don't want negative comments here. I am just asking for help. I am taking out my 241OR and replacing it with a NP231. I understand that the 241OR has an electronic speedometer on it and the NP231 has a analog speedometer on it. What do I need to do to make this swap?


2006 RUBICON
with new to me dana 30 and dana 35 rear
(dont wanna talk about it)
yogi250cc is offline  
Sponsored Links
Advertisement
 
post #2 of 4 Old 11-22-2010, 08:27 AM
Unlimited04
This post/info=my opinion
 
Unlimited04's Avatar
2004 LJ Wrangler 
 
Join Date: Dec 2005
Location: Colorado
Posts: 24,165
the NP231 is really an electronic speedometer. its all electrical signal after the sensor. the NP241OR uses a tone ring, the stock NP231J uses a speedo gear, both send electronic signals to the PCM. the plug should be the same, and it should hook right up. You can also get a NP231J with a tone ring, from www.jbconversions.com ...you'll need an SYE with your lift height anyway.
Unlimited04 is offline  
post #3 of 4 Old 11-22-2010, 08:32 AM
breckboarder55
Registered User
1999 TJ Wrangler 
 
Join Date: Sep 2007
Location: Houston/ College Station, TX
Posts: 1,074
IIRC the 231 needs to have a short 23 spline input.

Someone else will probably know better, but you might need a driveshaft since the Rubicon has a shorter yoke? (Possibly wrong)

I want to hear this story...

To Veterans past and present, thank you for your service!
99 Jeep Wrangler-Just another TJ on 33"s
55 Dodge Royal Lancer- Resto Project
87 Mazda RX-7 Turbo II-Built.
87 Mazda RX-7 SE-Burn Victim
01 Honda S2000DD
breckboarder55 is offline  
post #4 of 4 Old 11-22-2010, 09:09 AM
Unlimited04
This post/info=my opinion
 
Unlimited04's Avatar
2004 LJ Wrangler 
 
Join Date: Dec 2005
Location: Colorado
Posts: 24,165
Quote:
Originally Posted by breckboarder55 View Post
IIRC the 231 needs to have a short 23 spline input.

Someone else will probably know better, but you might need a driveshaft since the Rubicon has a shorter yoke? (Possibly wrong)

I want to hear this story...
yea, sorta. If the OP has a 42RLE, he'll need the short input shaft (1-3/8" long from shaft face to mounting face). If he's got the manual, it's not an issue...long or short should work. all NV241OR's had short input shafts.

also worth noting you need a newer NP231J, 1996+. Shafts are different before that.
Unlimited04 is offline  
Reply

Tags
np231 , np241or , swap

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
Torque specs for Double Cardan Driveshaft to NP241OR output flange andito77 TJ Wrangler Technical Forum 5 05-17-2013 04:51 PM
np241or parts Alex98 TJ Wrangler Technical Forum 8 08-30-2010 02:28 PM
Atlas II vs NP241OR AlexGeorgakis TJ Wrangler Technical Forum 95 05-15-2010 10:35 AM
replacing the output of a np241or Dink TJ Wrangler Technical Forum 0 02-13-2009 08:58 AM
Blown NP241OR...anyone else with this problem??? XXX_4X4 TJ Wrangler Technical Forum 7 01-22-2009 09:56 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome