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 Build Threads & Member's Rides
1994 Hunter Green SE “Back to Stock” Thread
Reply to thread
Message
<blockquote data-quote="machoheadgames" data-source="post: 439758" data-attributes="member: 18789"><p>Good points, definitely not trying to reinvent the wheel.</p><p></p><p>Mostly only doing the thicker oil because of some browsing through NAXJA where others did the same and had good results (noise, wear). I've taken apart a few 231s, none for failures but I always find a decent amount of metal wear in there. I'm sure some is normal and would be interested to see a comparison amongst various fluids, but have no way to test that. I do think the transfer case has always shifted a bit clunky, in mine anyways. The 80W90 is for sure thicker, but it fits in the bearings and passageways fine. I actually was squirting it through passageways during the rebuild. The passages are pretty large really. </p><p></p><p>The misting thing isn't a big problem I've had, although a few rebuilders warn about it and actually push you to use motor oil for their warranty. I haven't really checked my t-case lube much over the years but it definitely was below full when I removed the fill plug after a few years and around 20K miles. By how much, not sure. Probably not enough to be a big deal, but is something to be aware of. Sooner changes definitely take care of that as you stated.</p><p></p><p>I will add, not that it's exactly the same thing, but my Tacoma calls for a straight 75W gear oil that is about the same thickness, if not slightly thinner than ATF. That was a fuel economy decision by Toyota - the previous gen transfer case was almost completely identical and it called for 75W-90 GL4 prior. I put the same 80W-90 in my truck t-case and shifts are no doubt more smooth. Going from 2HI to 4HI, I used to get a similar clunk as my Jeep 231 would do occasionally, probably from the synchro bringing the front up to speed. That feels more cushioned with a thicker manual trans gear oil in the t-case. Could be my imagination.</p><p></p><p>I did fill it up partially last night and turned the yokes. It pumps fine. I opened the fill plug and watched - the fluid immediately flows right over to the pump, the pump sucks the fluid right up and disperses it as it should. Overall I'll keep an eye on it but it should be fine. I will not ever be driving in extreme cold, and it will always be garage kept.</p></blockquote><p></p>
[QUOTE="machoheadgames, post: 439758, member: 18789"] Good points, definitely not trying to reinvent the wheel. Mostly only doing the thicker oil because of some browsing through NAXJA where others did the same and had good results (noise, wear). I've taken apart a few 231s, none for failures but I always find a decent amount of metal wear in there. I'm sure some is normal and would be interested to see a comparison amongst various fluids, but have no way to test that. I do think the transfer case has always shifted a bit clunky, in mine anyways. The 80W90 is for sure thicker, but it fits in the bearings and passageways fine. I actually was squirting it through passageways during the rebuild. The passages are pretty large really. The misting thing isn't a big problem I've had, although a few rebuilders warn about it and actually push you to use motor oil for their warranty. I haven't really checked my t-case lube much over the years but it definitely was below full when I removed the fill plug after a few years and around 20K miles. By how much, not sure. Probably not enough to be a big deal, but is something to be aware of. Sooner changes definitely take care of that as you stated. I will add, not that it's exactly the same thing, but my Tacoma calls for a straight 75W gear oil that is about the same thickness, if not slightly thinner than ATF. That was a fuel economy decision by Toyota - the previous gen transfer case was almost completely identical and it called for 75W-90 GL4 prior. I put the same 80W-90 in my truck t-case and shifts are no doubt more smooth. Going from 2HI to 4HI, I used to get a similar clunk as my Jeep 231 would do occasionally, probably from the synchro bringing the front up to speed. That feels more cushioned with a thicker manual trans gear oil in the t-case. Could be my imagination. I did fill it up partially last night and turned the yokes. It pumps fine. I opened the fill plug and watched - the fluid immediately flows right over to the pump, the pump sucks the fluid right up and disperses it as it should. Overall I'll keep an eye on it but it should be fine. I will not ever be driving in extreme cold, and it will always be garage kept. [/QUOTE]
Verification
Post reply
Forums
Jeep Wrangler YJ
YJ Build Threads & Member's Rides
1994 Hunter Green SE “Back to Stock” Thread
Top
Bottom