Diff leak-but not in the typical location!
Thread Starter
Safety Car
Joined: May 2002
Posts: 3,615
Likes: 2
From: waterloo ontario
St. Jude Donor '08
Diff leak-but not in the typical location!
Okay-I have a diff leak but it's not coming from any of the side covers. It's coming form where the tranny meets the diff. So we pulled it apart changed the seals and it's doing it again. There almost looks like a small hole and there is a part that goes between the diff and the tranny. The rear portion of the tranny has oil dripping on the edge. And it's diff oil not tranny fluid-what could be causing this? I'll tryo to post pics tonight.
Safety Car
Joined: May 2004
Posts: 4,811
Likes: 2
From: Simpsonville SC
Man I have the same exact problem. I just left a post yesterday and no luck. Hopefulley some one will help. Good Luck with yours. I just pulled the tranny out last night and Im waiting on some replies so I can move on. 
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
assuming factory fluids... the diff fulid will drip a slight green color.
Sometimes it's diffucult to determine the color of the fluid. It helps to smear some on a piece of paper and hold it up to a light.
Sometimes it's diffucult to determine the color of the fluid. It helps to smear some on a piece of paper and hold it up to a light.
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
on a 6 speed C5 there is nothing between the two. There's a seal on the shaft where it exits the tranny, and then a gasket between the two housings.
ignore the "Seal Plate" text, that only pertains to A4 equiped C5's. The pictured carrier is as it would appear - removed from the back of the 6 speed tranny.
ignore the "Seal Plate" text, that only pertains to A4 equiped C5's. The pictured carrier is as it would appear - removed from the back of the 6 speed tranny.
Safety Car
Joined: May 2004
Posts: 4,811
Likes: 2
From: Simpsonville SC
I think you answered my question. What kind of seal goes on there, the part that is between the diff and the tranny. Im going to replace the diff seal and the side the tranny is on is where it is leaking. Is this seal or both seals hard to replace? Is that a seal from GM or what kind. Please help I posted this yesterday and I havent had any help. If you know please let me know. Thank YOU!
Thread Starter
Safety Car
Joined: May 2002
Posts: 3,615
Likes: 2
From: waterloo ontario
St. Jude Donor '08
I looked at the pics on cajunedude's website. There looks like an o-ring on the output of the tranny and it goes inside the diff. It has to be that o-ring that is damged that is causing it to leak
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