C3 Rear Differential
Instructor
Joined: Dec 2018
Posts: 215
Likes: 86
Last edited by Pzark; Feb 7, 2020 at 12:37 AM.
Melting Slicks
Joined: Apr 2010
Posts: 2,794
Likes: 1,195
From: Canberra Australia
2025 C3 of the Year Finalist - Modified
I Cleaned my diff with simple green and wire brushes before sending out for rebuild.
They removed the internals and media blasted it with old bearing shells in place.
Came back like this...
I them sprayed it with Metal Mask after cleaning with thinners etc.
They removed the internals and media blasted it with old bearing shells in place.
Came back like this...
I them sprayed it with Metal Mask after cleaning with thinners etc.
Last edited by CraigH; Apr 10, 2023 at 09:31 PM.
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Thread Starter
Burning Brakes
Joined: Sep 2002
Posts: 1,009
Likes: 62
From: Houston Tx
[QUOTE=Pzark;1600867395]POR15 when exposed to UV light has a reaction however as we are under the car the sunlight never gets to it. You can top coat it if you want.
Changing the seals was relatively easy. Be careful with the pinion seal do not drive it in to far.
I had the back cover of my diff as I did get it powder coated and it has to be removed so you can get to the yoke retaining clips. It was a good time to check the yokes and the end play. You do have to remove the yokes to replace the yoke seals, so I did one at a time. I checked the end float, mine were well within spec, removed the yoke, replaced the seal and then refitted the yoke. I then did the other side. Hope this helps. Good luck .[/QUOTE
Hi all,
What does it take to get the old yoke seals out? Mine are pretty seized up in the differential; Is it ok to use heat? When installing them, do they need to be greased or anything? Thanks.
Changing the seals was relatively easy. Be careful with the pinion seal do not drive it in to far.
I had the back cover of my diff as I did get it powder coated and it has to be removed so you can get to the yoke retaining clips. It was a good time to check the yokes and the end play. You do have to remove the yokes to replace the yoke seals, so I did one at a time. I checked the end float, mine were well within spec, removed the yoke, replaced the seal and then refitted the yoke. I then did the other side. Hope this helps. Good luck .[/QUOTE
Hi all,
What does it take to get the old yoke seals out? Mine are pretty seized up in the differential; Is it ok to use heat? When installing them, do they need to be greased or anything? Thanks.
Last edited by hgoodwiniii; Feb 12, 2020 at 02:20 AM.
Instructor
Joined: Dec 2018
Posts: 215
Likes: 86
I just used a hammer and pry bar, doesn’t matter if you bend and destroy them, they should come out. Just work your way around them. When installing I used a large socket that covered the flange and they tapped in easily since I was applying an even force over the entire flange when hitting the center of the socket with a hammer, I actually had a 1/2” drive socket the right diameter in my tool box and I just popped in a short extension bar to hit on. If you just try going around the flange with a hammer they tend to want to pop out. That was my experience.
Thread Starter
Burning Brakes
Joined: Sep 2002
Posts: 1,009
Likes: 62
From: Houston Tx
Hi all, I'm getting ready to put my rear differential cover and gasket on and I found some of my ring gear bolts loose. Can anyone let me know what they need to be torque at? Thanks.