C6 Corvette General Discussion General C6 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by: Feral Industries

Small drip/trans/diff?

Thread Tools
 
Search this Thread
 
Old Dec 13, 2020 | 12:58 PM
  #1  
Jason W Dreher's Avatar
Jason W Dreher
Thread Starter
Instructor
 
Joined: Nov 2015
Posts: 212
Likes: 15
Default Small drip/trans/diff?

Hello, I noticed a very small fluid drip from the photo posted. Is this a rear trans seal? What is this exact location? It collects the fluid in the crack of the bolt connection. Trans is auto. Thanks!


Last edited by Jason W Dreher; Dec 13, 2020 at 01:04 PM.
Reply
Old Dec 13, 2020 | 07:36 PM
  #2  
Dano523's Avatar
Dano523
Race Director
10 Year Member
Community Builder
Community Influencer
Top Answer: 1
 
Joined: Dec 2013
Posts: 12,502
Likes: 3,631
Default

C6 has the diff side to trans side open, and you have a trans output shaft with seal, that protrudes out the back side of the trans.
So leak at that area, is just where the trans to diff mates up on the trans lip with O ring, and may need to pull the diff to re-seal the joint.O ring between the two.

Skip down to post 8
https://www.corvetteforum.com/forums...-rear-end.html

Or, since it looks like fluid is dripping down the case from the outside of the case, may be a leaking seal on the output shaft of the diff instead.

Last edited by Dano523; Dec 13, 2020 at 07:38 PM.
Reply
Old Dec 13, 2020 | 07:54 PM
  #3  
Jason W Dreher's Avatar
Jason W Dreher
Thread Starter
Instructor
 
Joined: Nov 2015
Posts: 212
Likes: 15
Default

Originally Posted by Dano523
C6 has the diff side to trans side open, and you have a trans output shaft with seal, that protrudes out the back side of the trans.
So leak at that area, is just where the trans to diff mates up on the trans lip with O ring, and may need to pull the diff to re-seal the joint.O ring between the two.

Skip down to post 8
https://www.corvetteforum.com/forums...-rear-end.html

Or, since it looks like fluid is dripping down the case from the outside of the case, may be a leaking seal on the output shaft of the diff instead.
Thanks. It's strange.. I dried the area off, and took the car out for about 15 mins. I hit it a few times. I let it sit and looked under, it was bone dry?
Reply
Old Dec 16, 2020 | 11:15 AM
  #4  
bikemiser's Avatar
bikemiser
Racer
 
Joined: Aug 2015
Posts: 285
Likes: 66
From: Marshall Il
Default

Had this on a C5. If car was stored in cold area, when trans oil was cold it would drip some were car sits. When everything is warm (like stored in warm garage or warm weather) nothing leaks. There was a tsb for the C5 back in the day. Just a thought.
Reply
Old Dec 16, 2020 | 01:44 PM
  #5  
Dano523's Avatar
Dano523
Race Director
10 Year Member
Community Builder
Community Influencer
Top Answer: 1
 
Joined: Dec 2013
Posts: 12,502
Likes: 3,631
Default

Originally Posted by bikemiser
Had this on a C5. If car was stored in cold area, when trans oil was cold it would drip some were car sits. When everything is warm (like stored in warm garage or warm weather) nothing leaks. There was a tsb for the C5 back in the day. Just a thought.
Yep, and could just be the O ring starting to shrink/flatten will cause the leak when the cold.


Hence its the reason that when you do go to replace the O ring seal, you break out the RTV for the trans to diff bolting surface faces as well.
Reply
Old Dec 16, 2020 | 02:01 PM
  #6  
bikemiser's Avatar
bikemiser
Racer
 
Joined: Aug 2015
Posts: 285
Likes: 66
From: Marshall Il
Default

On the C5 there was a weep hole between trans and diff so if a leak from rear trans seal the fluid would find its way to the weep hole.
Reply
Old Dec 17, 2020 | 07:56 AM
  #7  
Dano523's Avatar
Dano523
Race Director
10 Year Member
Community Builder
Community Influencer
Top Answer: 1
 
Joined: Dec 2013
Posts: 12,502
Likes: 3,631
Default

C6 diff, so the area between the trans and the diff where they bolt together and are just O ring sealed together, that area that is filled with diff fluid. So no weep hole, since it would just allow diff fluid to run out.


On the back side of the long trans output shaft (which is the pinion shaft for the diff as well ), you have an oil seal on it to keep the trans fluid sealed forward of it.
Reply

Get notified of new replies

To Small drip/trans/diff?





All times are GMT -4. The time now is 06:44 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE