Trac loc diff oil - JeepForum.com
 
LinkBack Thread Tools
post #1 of 4 Old 04-02-2013, 04:52 PM Thread Starter
Rosental1
Registered User
1991 FSJ Wagoneer 
 
Join Date: Feb 2013
Location: Closter
Posts: 64
Trac loc diff oil

I have a 1991 Waggy with towing package and trac loc rear differential. Hanes says to have 90w140 great oil and friction modifier.

Does anyone knows which modern oil should go in there?

Rosental1 is offline  
Sponsored Links
Advertisement
 
post #2 of 4 Old 04-02-2013, 05:49 PM
timgr
Registered User
1975 CJ6 
 
Join Date: Dec 2012
Location: Medford
Posts: 473
Plain-old GL-5 hypoid gear oil, typically 85W90 weight. Oddly, Haynes calls for 140 wt (typically 85W140 today). I'd trust the owner's manual for the weight, if you have one.

But I likely wouldn't even look it up - I'd put in 85W90.

You need the friction modifier. It comes in a tube that you squeeze in before you add the oil. Some brands of oil say "limited slip compatible" and you may be ok with that. But they often chatter without adding some modifier. Try it without if you want. If it chatters, add some modifier.

1) '77 J10 LWB, 258/T15/D20/3.54 bone stock, low options (delete radio), PS, hubcaps. 2) '82 J20 360/T18/NP208/3.73, KOs, 7600 GVWR 3) '75 CJ-6, 304/T15, PS, BFG KM2s, soft top 4) '95 VW Golf Sport 2000cc 2D
timgr is offline  
post #3 of 4 Old 04-02-2013, 06:02 PM Thread Starter
Rosental1
Registered User
1991 FSJ Wagoneer 
 
Join Date: Feb 2013
Location: Closter
Posts: 64
The manual says 75w90 for regular and 85w140 for towing package.
Rosental1 is offline  
post #4 of 4 Old 04-03-2013, 12:16 PM
CSP
Registered User
 
Join Date: Aug 2002
Location: Colorado
Posts: 15,342
If you want to call it "modern", use a synthetic. Most are slippery enough not to need the friction modifier.
CSP 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



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