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I am trying to remove the clutch plates from the transmission but am stumped. There is a big nut on the shaft holding the plates in place.
How do you break the nut free without damaging the plates...or any other part of the transmission?

Certainly there is an easy solution that I have not tried.

All suggestions are appreciated.

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I have done that on my 126 but it was over 30 years ago. I don't recall any difficulty getting that centre nut off, you just have to lock or hold the clutch assembly from turning. Then that centre splined piece has to be pulled off the keyed shaft. The instructions below show a puller. I guess I made one to suit on the lathe, can't recall. Anyway, maybe the attached instructions for the 126,226,326 cars from the Service Manual will help.
I have a number of old clutches in unknown condition but all have badly indented splines from the plates. I had to have the splines cut deeper and new plates made to suit for my car and it is still working fine.

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Thanks for responding.
I have the manual, but as usual, manuals are too simplistic.
I still need to know how to keep the clutch assembly from turning .

Can you hold the shaft from turning by putting it in gear and holding the nut on the output shaft with a socket, or is the clutch slipping?

I suggest a honking big impact wrench and a deep socket. I find that in most cases it is far less injurious than other jury-rigged methods for holding things still. zzzp and it is off.

I did the same like Ross, no problem to remove that nut with an impact wrench but some little problems to remove the spider wheel. Because I dont have this original Spider Puller .. I build my own one.

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