post #1 of Old 01-16-2014, 09:11 AM Thread Starter
758879
Registered User
1987 YJ Wrangler 
 
Join Date: Dec 2012
Location: inver grove heights
Posts: 102
Np231 slip yoke question

Hey i have a 87 yj with an 88 np231 and found a sye on craigslist for cheap its out of a 2000 wrangler with a 231 j will this work in my np231? And i have the older style mechanical speedo will this still work with it because i know they switched to digital later on


I would support obama care if it covered my jeep too!
758879 is offline  
post #2 of Old 01-16-2014, 09:34 AM
Anticanman
RIP one good jeeper
 
Anticanman's Avatar
1994 YJ Wrangler 
 
Join Date: Aug 2009
Location: Ripon
Posts: 20,368
Its one bolt to swap the speedos

Luck Favours The Prepared
Anticanman is offline  
post #3 of Old 01-16-2014, 09:34 AM
jokerchief462
Registered User
1989 YJ Wrangler 
 
Join Date: Nov 2010
Location: Sin City
Posts: 2,881
Your good my 89 is mechanical

Sent from underneath my Jeep

89YJ 2.5L TBI, AX-5, NP231 SYE, Ford 8.8, Yukon Grizzly, Tom Woods Shaft, 33" BFG T/As, 4" lift, Warn VR10000s.

AF Jeep Club Tail #184
jokerchief462 is offline  
post #4 of Old 01-16-2014, 10:33 AM
kloppk
Registered User
1992 YJ Wrangler 
 
Join Date: Oct 2006
Posts: 2,751
A few things to look out for...
- Spline count. Your BA/10 tranny is a 21 spine output. Be sure the tcase you are considering is also a 21 spline.
- The front output yoke on the TJ tcase is for a CV (double cardan) driveshaft. Your YJ would have a single u-joint.
- The TJ tcase has an electric switch in the spot your YJ case has the vacuum switch for your front axle. Will need to deal with that if you still run the front axle disco with vacuum.

Baystate Jeepers
Deep Woods Extreme
New England 4 Wheelers
kloppk is offline  
Reply


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



Posting Rules  
You may not post new threads
You may not 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