The superceeded part number is 4668632AD ... $100 list price.
The number and price came from the dealer. I was looking for a TSB on it, ... but did not find one. My dealer had replaced one and a fellow in SC had his done under warranty and noticed the "dash-pot" or cushion device that is in the line going to the slave cylinder, was not on there any more. When he asked about it, ... he was told it was removed as per the new clutch cylinder instructions.
BUT Chrysler is NOT telling us what is wrong, ... they are being very, ..... "SS" ... about it!
Bob