[awpti]

I've got the rear-diff groaning problem as well. Already had the fluid replaced once, still doing it.

[OMEN]

so have can you fix this thing? so if i buy 1 it must have that issue?! :(

[ctrlz]

Originally Posted by OMEN

so have can you fix this thing? so if i buy 1 it must have that issue?! :(

To which problem are you referring? There are at least 3 mentioned in this thread.

[activepat]

Is it me????

5000 miles and 10 months later and not one issue. I don't get it.

[I`m Batman]

This guy seems to have similar problems as you. See vid below..

https://youtu.be/VJ00b7mN36M?t=65


Here's the fix... software update. There's a TSB for it apparently.

[ctrlz]

Originally Posted by I`m Batman

This guy seems to have similar problems as you. See vid below..

https://youtu.be/VJ00b7mN36M?t=65

This looks different to me. His goes to one screen and then is unresponsive. The OP showed a touchscreen which is switching views as if it keeps registering an edge press.

[whiteboyblues2001]

Originally Posted by xonos

Oh shit, guys. I forgot to tell you something. Get this. On one of my warranty work service sheets, it says this:


"REAR DIFF FLUID DARK WITH METAL DEBRIS - DRAINED AND REPLACED FLUID"

What the ****, right? This thing is going to explode.

The metal debris is normal, it's from the gears wearing into each other.

[I`m Batman]

If you look at 1:36 when he presses the home button. Then press "Audio", you can see the screen responded that the button was pressed. BUT the screen has a "phantom finger" that kept pressing "Text" then the "Phone". Then again when he press home. You can see that a "phantom finger" is repeatedly pressing around that area very rapidly, which causes the "unresponsiveness". Even though you can see that the screen did response when he presses other buttons. The OP's "phantom finger" doesn't press as rapidly as this guys' when the screen started to respond. lol

https://youtu.be/VJ00b7mN36M?t=96

[ctrlz]

Originally Posted by whiteboyblues2001

The metal debris is normal, it's from the gears wearing into each other.

More likely from the clutch packs or plates in an LSD. The helical gears themselves will wear very slowly. The clutch packs are compressed by a preload spring or springs. The gear oil in an LSD serves to cool the gears and keep them lubricated. The friction modifiers act within the clutch assembly. These "modifiers" alter the shear properties of the gear oil.

An LSD strikes a balance between static and sliding friction. In straight line movement the preload spring locks both sides of the differential together and the rear wheels moves like a solid axle. This is static friction. In a turn, the wheels want to move at different speeds. The preload spring is tuned so that the clutches start to slip in a turn. This is sliding friction which has much lower "grip" than static friction. The friction modifiers are called that because they "modify" the friction coefficient and encourage the plates to keep slipping. This keeps the clutches from going grab-slip-grab-slip-grab-slip... and so on. That action causes chatter or groan.

For proper operation the clutch surfaces need to be machined properly and be free of debris. Some LSD's require a break-in procedure. I have not heard of that for a factory car, but those having noise problems might want to give this a try:
http://diffsonline.com/images/Differ...break%20in.pdf

EDIT: Some stuff I found on the Gen5 diff sounds similar, as does the solution:
http://www.camaro5.com/forums/showth...=417907&page=2