Differential snap but not blown?

**VeYzZii** · 01-03-2011 07:02 PM

Originally Posted by AusS2000

Do you guys not read the original post?

If the sound is there when you're idling in neutral it ain't your diff.

mmmmmm, wow.. Sh#T, I wrote it and still went on blind.. The diff gets no movement when in neutral and stationary...? I assumed after replies that there must be something going on.. Do you have any ideas on what i can be..?

**AusS2000** · 01-03-2011 07:02 PM

That said, I am having my diff rebuilt and reinforced. Meantime I'm running my spare diff. When I get my reinforced diff back my spare will be for sale. Good thing is the spare is in perfect condition and can be tested whilst it's still in my car.

**AusS2000** · 01-03-2011 07:48 PM

Originally Posted by VeYzZii

Do you have any ideas on what i can be..?

If you hear it when the car is in neutral then it has to be something forward of the transmission input shaft. If it doesn't change when you push the clutch down or let it out (still in neutral) then it's not the clutch or input shaft bearing.

All that really leaves is the engine.

In neutral, idling, does the sound get faster with more revs? If so, I expect its bearing damage in the engine.

**AusS2000** · 01-03-2011 07:53 PM

That said, Stevharr had a ticking sound in the engine. Was about to pull the bottom end apart when we worked out it was the air conditioner compressor. Bearing was stuffed. We just swapped out the compressor.

I know you think it's coming from the rear but you really need to get a second opinion from someone standing outside the car. I thought my transmission output shaft bearing had gone so rebuilt it, only to discover it was my diff (hence the rebuild). It could be your valves are out of adjustment from what you've told us.

**VeYzZii** · 01-03-2011 10:18 PM

Originally Posted by AusS2000

If you hear it when the car is in neutral then it has to be something forward of the transmission input shaft. If it doesn't change when you push the clutch down or let it out (still in neutral) then it's not the clutch or input shaft bearing.

All that really leaves is the engine.

In neutral, idling, does the sound get faster with more revs? If so, I expect its bearing damage in the engine.

Hey man. I worked out. I believe the cvs.. Well actually just the right (driver) cv. It just keep ls turning. The noise is coming from there.. The left seems fine.. But yea. It keeps spinning in neutral too. Is that normal when cv snaps?

**AusS2000** · 01-03-2011 10:27 PM

In neutral? Not really. I guess there could be some drag through the gearbox but the whole idea of neutral is that there is no connection between the input and output shafts of the gearbox.

But, if you see you right CV cup spinning and your wheels are not turning then the tripod is blown.

Something like this:

**VeYzZii** · 01-03-2011 11:01 PM

Yea. And that sits in the cv joint axle? So a new cv joint n axle will be all I need. While I'm at it I will most probably replace both, and raise the car slightly higher. Do you know the cause of this auss2000?

**AusS2000** · 02-03-2011 07:58 AM

I know what caused mine. Launching off the lights and getting wheel hop.

**VeYzZii** · 02-03-2011 10:07 AM

Yea. Makes sense now. Thanks alot bro. Really appreciate that. Ps how much did a new one set you back??

**AusS2000** · 02-03-2011 11:56 AM

I bought a used set of axles and swapped them myself.

**s2kjn** · 02-03-2011 12:31 PM

^^He also said the noise is coming from the diff when in gear?

VeyYzZii - Yes my car was lowered with kings when my crown & pinion made the same noise you descrive (now I have coils

)but no spacers either. I also heard that diff problems with the S are related to them being lowered. I guess it'd be wise if I got spacers then huh!