Rear halfshaft seals...

[RedLS1GTO]

Anybody in here replaced these things? Mine are both leaking like sieves. I'm not really sure what I did to hurt them but I'm worried that I might have broken something in the rear end as well (we'll have to see).

I'm waiting on parts but that's the next thing on the to-do list on the track car. I'll be documenting of course with pics once I dig into it.

[PLRX]

Originally Posted by RedLS1GTO

Anybody in here replaced these things? Mine are both leaking like sieves. I'm not really sure what I did to hurt them but I'm worried that I might have broken something in the rear end as well (we'll have to see).

I'm waiting on parts but that's the next thing on the to-do list on the track car. I'll be documenting of course with pics once I dig into it.

can't wait for pictures

[RedLS1GTO]

Originally Posted by PLRX

can't wait for pictures

I don't know if it was related but I got into terrible wheel hop trying to miss a wrecking Miata and it seemed like from then on they were leaking (to the tune of about 1/2 qt per hour of driving).

I'm terrified about what I am going to find when I start tearing into it. By the end of this I have a bad feeling that I am going to have it apart from the flywheel back.

[Shrek]

Snap rings hold the yokes in, rear diff has to come out.

[RedLS1GTO]

Originally Posted by Shrek

Snap rings hold the yokes in, rear diff has to come out.

I am already not looking forward to doing that work in a garage, with no heat, in the winter.

While I am tearing in to things I am going to try to figure out that crazy shake when you try to back up. It might be my imagination that it is getting worse but you can hardly get the car to go backwards as it is now.

I have talked to a lot of people and done a lot of looking but still am not 100% sure what it is. The clutch makes sense somewhat, but if that were the case, why does it only do it in reverse? The clutch and flywheel are doing the same thing no matter which direction you are going.

I am hesitant at the same time to say it is transmission related... after all, there is only gear on gear, metal on metal in there and the vibration really doesn't seem at all like a grinding or gear related.

If it is neither of those 2 things... the only remaining option is something in the rear end... perhaps the clutches back there? I really am at a loss. There is a part of me that hopes to find something screwed up and destroyed in there when I take it apart. At least then I would know what was wrong and would be able to fix it.

[dclafleur]

Don't know on the yokes, I pulled my halfshafts this winter in my shop and it wasn't too bad but I didn't pull the diff or yokes.

Good luck and let us know!

[Shrek]

http://www2.dana.com/pdf/5323.pdf

Page...6
Figure...3
Part...26

NO...you do not have to remove any gears! Just rotate till you can see the snap ring ears, expand snap ring with with snap ring pliers, then slide the yoke out. No room to remove snap ring, so you have to slide yoke out while you hold the ring open.

Look down in the spiders in this photo, you can see the end of the yoke shafts and the snap rings on the ends.

[RedLS1GTO]

Originally Posted by Shrek

http://www2.dana.com/pdf/5323.pdf

Page...6
Figure...3
Part...26

NO...you do not have to remove any gears! Just rotate till you can see the snap ring ears, expand snap ring with with snap ring pliers, then slide the yoke out. No room to remove snap ring, so you have to slide yoke out while you hold the ring open.

Look down in the spiders in this photo, you can see the end of the yoke shafts and the snap rings on the ends.

Thanks!

I've pulled apart rear ends... but never in a C4. Of course these things are a little different than what is stuffed up under an old truck that you can have apart in 10 minutes. The guts might be the same but getting to the guts certainly isn't.

What do you think of the theory I posted about maybe being the rear clutches causing the shake? I just can't convince myself that it is the clutch package since it does it in reverse only. Since the flywheel and clutch are going the same direction no matter what gear you are in, you would think it would do it both ways if that was the problem... right?

Whatever it is, it's definitely worse now than when I originally got it. I tried to turn the car around in the driveway and it took me 15 minutes to back it into the garage.

[Shrek]

I'm still leaning towards this being an inherent problem of the aluminum flywheel/stage 3 clutch combo.

READ THIS THREAD

[RedLS1GTO]

Originally Posted by Shrek

I'm still leaning towards this being an inherent problem of the aluminum flywheel/stage 3 clutch combo.

READ THIS THREAD

...and that is what is so confusing about it to me.

That sounds EXACTLY like the same problem, but why is it only in reverse? There is no chatter in 1st with a similar ratio.

Hopefully I'll have some answers when I start ripping it apart.