Gear Oil Question - Off-Road Forums & Discussion Groups
Jeep-Short Wheelbase All discussion of short wheelbase Jeeps: CJ, TJ, YJ and JK

LinkBack Thread Tools Display Modes
post #1 of (permalink) Old 09-13-2002, 10:30 AM
Posts: n/a
Gear Oil Question


Just got a question about gear oil. What weight/type does everybody use in their axles and which lockers.

Does it matter if you have a certain type of locker?

I always see limited slip,etc and just thought I would ask.

Sponsored Links
post #2 of (permalink) Old 09-13-2002, 11:35 AM
Join Date: Nov 2000
Posts: 2,687
Thanks: 0
Thanked 0 Times in 0 Posts
Re: Gear Oil Question

80/90 gear oil seems to work fine for me with a detroit locker. Heavier oils quiet lockers more than lighter oils. Good especially for lockright and ez-lockers. Limited slips you need to follow the manufacturers instructions as they often need specific additives to the oil.
TiminMb is offline  
post #3 of (permalink) Old 09-13-2002, 12:01 PM
Official Historian
WILL's Avatar
Join Date: Sep 1999
Location: Hot Springs, AR
Posts: 8,339
Thanks: 1
Thanked 5 Times in 5 Posts
Re: Gear Oil Question

The limited slips just require a friction modifier because they have clutches that need friction to work. Lockers and open diffs don't need it. I use 80/90 in my dana 30/44 with lockrights too.
WILL is offline  
Sponsored Links
post #4 of (permalink) Old 09-13-2002, 08:22 PM
I Do This For The Glory
JEEPN's Avatar
Join Date: Dec 1999
Location: Nobleboro, Maine
Posts: 7,958
Thanks: 0
Thanked 0 Times in 0 Posts
Re: Gear Oil Question

I run 75W-90 Mobil-1 in my D44's with lockrights. I also run it in my Trooper and TJ, both with LSD (and yes, you still need the friction modifier).
JEEPN is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Off-Road Forums & Discussion Groups forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

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


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

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 On
Pingbacks are On
Refbacks are On

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