are the rear wheel cylinders the same on all SA and FB cars or are the SA ones different? I have read many times that the thread pitch on the break lines from the axle forward are different but are the threads on the actual cylinder different or the same?

Thanks

 

I'd call mazda or a parts store. Same part # or different. That should tell.

 

They are different.

The switch happen from 1980 to 1981.

 

By the way. The passenger side wheel cylinder will not work on the driver side. for any one that might want to know.