Info on differential leak
Thread Starter
Heel & Toe
Joined: Jun 2008
Posts: 24
Likes: 0
From: Virginia
Info on differential leak
Hello folks - I'm new to this forum, but visited many times in the past as a guest. Just bought a low mileage 2004 CE and found that it leaks gear oil between the auto trans and diff. The axle seals and side covers are dry. My local Chevy dealer put it on a lift and confirmed my diagnosis. They said the trans and diff both have to be removed and the diff taken apart to replace the input seal. Conventional rear drive cars had a pinion seal that was easy to replace. Oddly, the Chevy overhaul pictures don't show how the input is sealed, although it would be aparent after the case is opened up.
Can anybody shed some light on this repair?
Thanks from Northern Virginia
Can anybody shed some light on this repair?
Thanks from Northern Virginia
Melting Slicks
Joined: Jul 2000
Posts: 2,541
Likes: 0
From: Chicago
The rear diff seal is just a big o-ring that goes between the diff and trans. I don't see why they would need to remove the trans... Its a fairly simple procedure, just lower the rear subframe enought to slide the diff off, replace seal, slide back on, bolt up rear subframe and exhaust etc.
Le Mans Master
Joined: Nov 2004
Posts: 7,050
Likes: 7
From: Canadian Rockies
You can take a look at the steps involved thanks to Cajundude :
http://www.cajundude.com/differential.htm
As you can see, it involves quite a bit of work for a measly little seal. (It looks like you'll have to strip it down to step 13.)
Personally, I'd probably take the opportunity to go with 4.10 gears.
Melting Slicks
Joined: Dec 2003
Posts: 3,315
Likes: 17
From: Near Jacksonville Fl.
You can take a look at the steps involved thanks to Cajundude :
http://www.cajundude.com/differential.htm
As you can see, it involves quite a bit of work for a measly little seal. (It looks like you'll have to strip it down to step 13.)
Personally, I'd probably take the opportunity to go with 4.10 gears.
Install 3.42"s and a 2800-3000 stall converter.
