Porsche LSD diaphragm spring for e30

[dsphil]

I am rebuilding my LSD and noticed the diaphragm spring disc is worn. It is not worn all the way that I can not re-use it, but I do like to replace it. This is a NLA part from BMW. Will the Porsche part work? the part number I have researched is 92833255500.

[camshaftgsxr]

Given the cost of rebuilding a diff? I say buy one and see, they list around 26 each buy it and see what size it is.

[TobyB]

A lot of those parts seem to cross.
There are small- case parts that do...

t

[dsphil]

After more research, if the Porsche clutch disc works with the e30 carrier, I think the spring disc will work just fine. I placed an order and see how it made out when it arrives.
Rebuilding a diff is really not that expensive compare to suspension and other performance upgrades. The lsd diff is probably the most neglected maintenance wear item in the car because it acts just like an open diff once the disc are worn with no ill effect on normal driving.
I'll post updates on this.

[dsphil]

Update: Does not meet BMW specs.

BMW


Porsche


BMW


Porsche

[TurboJake]

http://e30performance.info/viewtopic.php?f=22&t=939

[dsphil]

This is the worn spring disc on the 3.73. the only explanation for the wear is the compression movement against the housing because this part does not spin against other surface. It is between the dog ear and the housing.
The other 2.91 I disassembled has zero wear.