T-case Installed Now leaking between trans and tcase
Thread Starter
Newbie
Joined: Jan 2010
Posts: 7
Likes: 0
From: Greeley, Colorado
T-case Installed Now leaking between trans and tcase
Hi newbie here posting. Just put my Shep Trans Stage 2 T-case in my 2003 lancer evolution. I just got it back today. They did a complete rebuild. When installing it went right in no prob I lubed the big o-ring. Drove it home to notice its leaking between the tcase and trans. Its leaking gear oil. Ive heard about guys putting silicone between trans and tcase where they meet but Shep Trans said no need to do that with the o-ring there. Please any help would be great. 
I have/had an issue with oil leaking from the same area when I changed the transmission.
I bought a new o-ring to replace in the near future but for 2 months now it stopped leaking. So I'm thinking either it dripped out all of the transfercase oil or maybe I overfilled it and the excess was leaking out of a breather whole. I'm not even sure if its transfer case oil or transmission oil.
Are you leaking transmission gear oil or transfer case?
I bought a new o-ring to replace in the near future but for 2 months now it stopped leaking. So I'm thinking either it dripped out all of the transfercase oil or maybe I overfilled it and the excess was leaking out of a breather whole. I'm not even sure if its transfer case oil or transmission oil.
Are you leaking transmission gear oil or transfer case?
Last edited by BluEVOIX; Feb 26, 2010 at 10:13 PM.
I would say it is that o-ring. If that o-ring has a tiny rip on the side of it or a small hole that you can't see it will leak. Or it may fell out or didn't sit the right way.
Thread Starter
Newbie
Joined: Jan 2010
Posts: 7
Likes: 0
From: Greeley, Colorado
Its leaking gear oil and Its leaking pretty good...its as if I didnt even install that oring but I know its on there cause I lubed it before install. Im gonna go tear it back apart to day at work and see what I find. Hopefully its an easy fix. Havent got to drive for a month! Only had it for a week before t-case started the DREADED "DEATH WHINE" 
. Im gonna go tear it back apart to day at work and see what I find. Hopefully its an easy fix. Havent got to drive for a month! Only had it for a week before t-case started the DREADED "DEATH WHINE"
Thread Starter
Newbie
Joined: Jan 2010
Posts: 7
Likes: 0
From: Greeley, Colorado
Trending Topics
comon problem, 25 cents o-ring between the TC and tranny they get pinched easy specially with all the jugling back and foward of you trying to line up the splines.
put a little RTV to hold bond the o-ring before you mate TC and tranny
put a little RTV to hold bond the o-ring before you mate TC and tranny
Newbie
Joined: May 2007
Posts: 21
Likes: 0
From: Australia
put a little RTV to hold bond the o-ring before you mate TC and tranny
Stick it there with some low temp grease or vasoline.
Brett
www.meek.com.au
Thread Starter
Newbie
Joined: Jan 2010
Posts: 7
Likes: 0
From: Greeley, Colorado
left the lil oring out! guess its needs to be there.....while unboxing the tcase must of went flying. HACK! lolThanks everyone!
