Fluids - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ Tech Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 09-12-2008, 08:35 AM   #1
Jeeper
 
98TJ's Avatar
 
Join Date: Oct 2007
Location: Vestal
Posts: 127
Fluids

Okay, gonna do a service before winter gets here. Its knocking on our door. I am sold on Redline MT-90 for my tranny, what does everyone else suggest for front and rear diffs, and T-case? I am looking for recommended fluids, amounts and any other things I would need to do it all. Should I go gaskets for the diffs, or Black RTV?

__________________


This is my jeep. There are many like it but this one is mine. My jeep is my best friend. It is my life. I must master it as I must master my life. Without me, my jeep is useless. Without my jeep I am useless. I must drive my jeep true. I must be better than the mud, who is trying to defeat me. I must conquer it before it conquers me. Before God I swear this creed: my jeep and myself are masters of the mud, we are the saviors of my life. So be it, until there is no more mud. Amen.
98TJ is offline   Quote Quick Reply
Old 09-12-2008, 10:12 AM   #2
Jeeper
 
compshooter's Avatar
 
Join Date: Jun 2006
Location: 29 Palms, Ca
Posts: 407
On my TJ, from the factory the front diff was RTV. Can't remember with the rear. Tried to purchase a front diff gasket at AZ, they said there isn't one. However, there are several places online that sell reusable gaskets for most diffs if you don't want to RTV.

__________________
99 SE with less than 43K on the clock and a few mods......
compshooter is offline   Quote Quick Reply
Old 09-12-2008, 11:35 AM   #3
Jeeper
 
98TJWrangler's Avatar
 
Join Date: May 2008
Location: Columbus, Ohio
Posts: 122
Send a message via ICQ to 98TJWrangler
I used:
Mobile 1 Syn Gear Lube for F & R Diffs
Mobile 1 Syn ATF in the X-Fer Case
Lube Locker Diff Gaskets
RedLine MT-90 in the Tranny
__________________
98 TJ Wrangler 2.5L|AE Wheels|32x11.50 BF Goodrich AT's|2in Rusty's Coil Lift|Soild Diff Covers|Line-Xed Tub|Hella Lighting
Bestop Sailcloth Top|Bestop Slider Windows|Smittybuilt Bumpers w/Rear Tire Carrier
98TJWrangler is offline   Quote Quick Reply
Old 09-12-2008, 11:42 AM   #4
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 32,761
Images: 2
I'm a big fan of RTV Ultra Black for sealing things like differential covers. It's cheaper and fits anything.

Use a good quality ATF for the transfer case, it's not fussy about the exact type of ATF it gets. ATF+3 is fine, ATF+4 is good if you want to go with a synthetic (ATF+4 is a synthetic).

On the axles, they're really not all that fussy about the exact viscosity used so long as it is a GL-5 gear lube. 75W-90 is fine for most locations, though if you tow a higher viscosity like 80W-120 is recommended. Lower viscosity numbers for colder locations, higher numbers for hotter locations or for towing.
__________________
When you have a choice, buy American.

Jerry Bransford is online now   Quote Quick Reply
Old 09-12-2008, 07:09 PM   #5
Jeeper
 
98TJ's Avatar
 
Join Date: Oct 2007
Location: Vestal
Posts: 127
I thought I read somewhere that GL-4 is best for open diffs. I thought GL-5 is for Lockers or Lim. Slip. I trust your advice Jerry so whatever you say goes. You've never given me a reason to doubt you. I do some towing once in a while but nothing major, and I live in Upstate NY, gets pretty cold. Is going with a low number viscosity going to be bad??
__________________


This is my jeep. There are many like it but this one is mine. My jeep is my best friend. It is my life. I must master it as I must master my life. Without me, my jeep is useless. Without my jeep I am useless. I must drive my jeep true. I must be better than the mud, who is trying to defeat me. I must conquer it before it conquers me. Before God I swear this creed: my jeep and myself are masters of the mud, we are the saviors of my life. So be it, until there is no more mud. Amen.
98TJ is offline   Quote Quick Reply
Old 09-12-2008, 07:30 PM   #6
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 32,761
Images: 2
Quote:
Originally Posted by 98TJ View Post
I thought I read somewhere that GL-4 is best for open diffs. I thought GL-5 is for Lockers or Lim. Slip. I trust your advice Jerry so whatever you say goes. You've never given me a reason to doubt you. I do some towing once in a while but nothing major, and I live in Upstate NY, gets pretty cold. Is going with a low number viscosity going to be bad??
A GL-5 rated gear lube is required for any axle whether it is open, has a locker, or if it has a limited slip differential. Only a GL-5 has the necessary additives to help the hypoid-cut (ring & pinion and spider) gears survive the loads they do. GL-3 and GL-4 is what you want for an older Jeep manual transmission like the AX-5 and AX-15. A lower viscosity like 70W-80, 75W-90, etc. would be perfect in your cooler climate.
__________________
When you have a choice, buy American.

Jerry Bransford is online now   Quote Quick Reply
Old 09-13-2008, 03:08 PM   #7
Jeeper
 
98TJ's Avatar
 
Join Date: Oct 2007
Location: Vestal
Posts: 127
Quote:
Originally Posted by Jerry Bransford View Post
GL-3 and GL-4 is what you want for an older Jeep manual transmission like the AX-5 and AX-15. A lower viscosity like 70W-80, 75W-90, etc. would be perfect in your cooler climate.
I have a 98 sport 4.0L. Don't I have the AX-15?? Or did they upgrade the AX-15 for the TJ model and it now requires a GL-5??
__________________


This is my jeep. There are many like it but this one is mine. My jeep is my best friend. It is my life. I must master it as I must master my life. Without me, my jeep is useless. Without my jeep I am useless. I must drive my jeep true. I must be better than the mud, who is trying to defeat me. I must conquer it before it conquers me. Before God I swear this creed: my jeep and myself are masters of the mud, we are the saviors of my life. So be it, until there is no more mud. Amen.
98TJ is offline   Quote Quick Reply
Old 09-13-2008, 05:12 PM   #8
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 32,761
Images: 2
Please carefully re-read what I said goes in the AXLES and what goes in the TRANSMISSION. And yes, you have an AX-15 transmission where Redline MT-90, which is a GL-4 75W-90 gear lube, would be perfect.
__________________
When you have a choice, buy American.

Jerry Bransford is online now   Quote Quick Reply
Old 09-13-2008, 07:30 PM   #9
Jeeper
 
98TJ's Avatar
 
Join Date: Oct 2007
Location: Vestal
Posts: 127
Sorry Jerry, i have been up since Friday morning w/o sleep. I'm a little off in my read capabilities.

__________________


This is my jeep. There are many like it but this one is mine. My jeep is my best friend. It is my life. I must master it as I must master my life. Without me, my jeep is useless. Without my jeep I am useless. I must drive my jeep true. I must be better than the mud, who is trying to defeat me. I must conquer it before it conquers me. Before God I swear this creed: my jeep and myself are masters of the mud, we are the saviors of my life. So be it, until there is no more mud. Amen.
98TJ is offline   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum 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 email address for yourself.
Email Address:

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.



Thread Tools

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 Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Fluids..... KellyK TJ Tech Forum 16 12-22-2008 11:08 PM
want to make sure i'm using the right fluids... vettefever5 TJ Tech Forum 2 10-16-2008 05:52 PM
Changing oil and other fluids chiro2736 General Jeep Discussion 4 07-15-2008 12:10 AM
fluids change scotiez TJ Tech Forum 5 02-29-2008 04:21 PM
axle, transmission fluids sierra YJ Tech Forum 3 02-13-2008 11:53 AM



Download our Mobile App

» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 10:23 AM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC