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Well the transaxle is in with the new clutch and throwout bearing,. I looked at the slave cylinder and after removing many years of grease and grime and found out it was a Girling 313200. I figured that it was a good time to rebuild or replace it. The bore looks good and the metal piston has some surface imperfections. The end boot is trash. These cylinders seem hard to find. I do see some repair kits. Is there another slave cylinder anyone recommends that would not need a lot of fab work to install or just get a rebuild kit? I did note that the rod attached to the clutch arm is adjustable but there is no way to lock the adjustment. I found it turned all the way in. Maybe the jam nut was removed to get it to the length needed. The new clutch is a Dual Force.

Seems almost every part I have checked or removed are original to the 1970 build of this car. Amazing that not much had changed over the years. It seems to be time to examine and repair/replace or upgrade for safety and reliability.

Larry
Simsbury CT

Any photos?

Here are some pictures. The ID is.802".
Larry

Same exact slave cylinder was installed in my Crown car from the original build. I opted to keep it as a good rebuildable core since it operated OK just leaked.
I replaced it with the same type of slave cylinder from Speedway motors it was $60 part # 910-25605. This new slave cylinder is a nice item and is built well but has issues from production that I told Speedway motors about. The issue is the fittings supplied with the slave cylinder have NPT threads and the slave cylinder's threads are not NPT the threads are straight.

so- how different is this from a half of a wheel cylinder?
Get the cup from a wheel cylinder repair kit for the same bore size, and external boot from ?
or, find what kind of slave cylinder has the same bore size and get a repair kit for it.

bore size is .802?
that's 20.37 mm
or 13/16 + .010

weird...