mechanical speedo(np207) to electronic(np231), How?? - JeepForum.com

 
LinkBack Thread Tools
post #1 of 5 Old 09-04-2009, 02:25 PM Thread Starter
wakingside
Registered User
1988 YJ Wrangler 
 
Join Date: Jul 2009
Location: wi
Posts: 13
mechanical speedo(np207) to electronic(np231), How??

For some reason my 88' yj had a 207 in it, and now that I swapped to an AX15 I had to throw in a 231. The 207 had a mechanical speedometer in it and the 231 has an electric.

I'm just wondering what it will take to get the speedometer working

wakingside is offline  
Sponsored Links
Advertisement
 
post #2 of 5 Old 09-04-2009, 02:50 PM
93jeepyj
Registered User
1993 YJ Wrangler 
 
Join Date: May 2008
Location: windsor locks, CT
Posts: 2,699
You should be able to pull the electronic sending unit out of the np231 and use the old sending unit from the 207. If not mechanical sending units for the 231 are very easy to come by so you can just use your cable and speedo already in your jeep.
93jeepyj is offline  
post #3 of 5 Old 09-04-2009, 03:54 PM
Alfons
Registered User
1992 YJ Wrangler 
 
Join Date: Jul 2005
Location: Ontario, Canada
Posts: 2,217
A lot of the transfer cases have similar speedo gear inserts. The D-300 & YJ NP231 (long shaft) are the same and come in two pieces - the upper part should come off and the VSS (vehicle speed sensor) or the cable drive section should fit on the same gear retainer. The gear retainer (with gear) is the second piece.

If the NP231 that you have is the long shaft version (long shaft speedo gear, TJs at some point changed to a short shaft speedo gear), you should be able to take the top section off the speedo gear insert and replace it with the cable drive, or go to a auto scrap yard and get one out of an 89 or earlier NP231 or D-300.
Alfons is offline  
post #4 of 5 Old 09-04-2009, 04:41 PM
antec
Registered User
 
Join Date: Mar 2009
Posts: 728
Quote:
Originally Posted by 93jeepyj View Post
You should be able to pull the electronic sending unit out of the np231 and use the old sending unit from the 207. If not mechanical sending units for the 231 are very easy to come by so you can just use your cable and speedo already in your jeep.
the 207 and 231 speedo are not the same not even close.
antec is offline  
post #5 of 5 Old 09-04-2009, 06:23 PM
93jeepyj
Registered User
1993 YJ Wrangler 
 
Join Date: May 2008
Location: windsor locks, CT
Posts: 2,699
Quote:
Originally Posted by antec View Post
the 207 and 231 speedo are not the same not even close.
ok still an easy fix, all he needs is a mechnical speedo gear housing from a 87-91 yj that had an np231, lots of chryslers used the same housing as well. I got one on ebay for like 13 bucks.
93jeepyj is offline  
Reply

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
np207 to np231 antec YJ Wrangler Technical Forum 4 09-06-2009 04:39 PM
np207 and np231 differance 9inchsoflift YJ Wrangler Technical Forum 1 08-24-2009 05:57 AM
NP207 to NP231 Doobiedog YJ Wrangler Technical Forum 24 05-12-2008 08:35 PM
NP207 to NP231 speedo problems Austin_YJ YJ Wrangler Technical Forum 3 05-31-2007 06:16 PM
NP207 TC to NP231 nfisher50 YJ Wrangler Technical Forum 5 10-07-2006 07:46 PM

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