Forums
New posts
Search forums
Image search
Shop
Amazon Store
T-Shirts
Stickers
Members
Current visitors
Supporting Member Upgrade
Sponsors
About
Log in
Register
Search
Search titles only
By:
Search titles only
By:
New posts
Search forums
Image search
Search
Search titles only
By:
Search titles only
By:
Menu
Install the app
Install
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Forums
Jeep Wrangler YJ
YJ General Discussion
Ring & Pinion Question
Reply to thread
Message
<blockquote data-quote="machoheadgames" data-source="post: 431340" data-attributes="member: 18789"><p>All good about being long winded, my posts are almost always long winded. </p><p></p><p>Cool that you finally got into Jeep life. I like mine and miss driving it, still wrapping up a ton of projects I decided to undergo all at once. Nearly done but trouble finding the energy to get out there and wrap it up, so taking a break. My only comment about the gearing was just because 3.07 offers quite poor performance. If it works for you, great, for me I like 4.10-4.56 for 31's with the 4.0. Ran 4.10 on my 31's for years and it was good, sometimes I still wanted a bit lower though. But anyways, whatever suits you. Makes sense how you got there, not so much a matter of choice but just sequence of events with your axle replacement.</p><p></p><p>GL3 or GL4 are both fine, GL3 seems to be mostly obsolete. GL5 was the bad one and Chrysler filled every AX transmission with it. Dumb. The official rec from the manufacturer, Aisin Warner, is 75W90 GL3 (superseded to GL4 in modern day). Chrysler filled them with the wrong stuff and then printed all the owners manuals and factory service manuals incorrectly too which started a long slew of improper fluid advice. To this day, parts stores will still tell you to put GL5 in it. Later they issued a TSB to use 10W30 which works ok, although I don't think it shifts as well, likely because it has additives for an engine, not a transmission. Anyways, 10W30 is ok or you can use a GL4 synthetic for better shifting. I really like Redline MT90, some have used Royal Purple Synchromax with no issues. I'd advise against Pennzoil synchromesh as it's not really meant for the AX application, but more for the NV3550 and NSG370 applications of 2000+ Wranglers</p></blockquote><p></p>
[QUOTE="machoheadgames, post: 431340, member: 18789"] All good about being long winded, my posts are almost always long winded. Cool that you finally got into Jeep life. I like mine and miss driving it, still wrapping up a ton of projects I decided to undergo all at once. Nearly done but trouble finding the energy to get out there and wrap it up, so taking a break. My only comment about the gearing was just because 3.07 offers quite poor performance. If it works for you, great, for me I like 4.10-4.56 for 31's with the 4.0. Ran 4.10 on my 31's for years and it was good, sometimes I still wanted a bit lower though. But anyways, whatever suits you. Makes sense how you got there, not so much a matter of choice but just sequence of events with your axle replacement. GL3 or GL4 are both fine, GL3 seems to be mostly obsolete. GL5 was the bad one and Chrysler filled every AX transmission with it. Dumb. The official rec from the manufacturer, Aisin Warner, is 75W90 GL3 (superseded to GL4 in modern day). Chrysler filled them with the wrong stuff and then printed all the owners manuals and factory service manuals incorrectly too which started a long slew of improper fluid advice. To this day, parts stores will still tell you to put GL5 in it. Later they issued a TSB to use 10W30 which works ok, although I don't think it shifts as well, likely because it has additives for an engine, not a transmission. Anyways, 10W30 is ok or you can use a GL4 synthetic for better shifting. I really like Redline MT90, some have used Royal Purple Synchromax with no issues. I'd advise against Pennzoil synchromesh as it's not really meant for the AX application, but more for the NV3550 and NSG370 applications of 2000+ Wranglers [/QUOTE]
Verification
Post reply
Forums
Jeep Wrangler YJ
YJ General Discussion
Ring & Pinion Question
Top
Bottom