Rear brake cylinder leaking and looking for a rebuild kit for the wheel cylinder. They used to be a common thing but not having any luck finding one. At over 250,000 miles in Pennsylvania winters I don't want to try to break open the bleeder or remove the brake line to install a new cylinder. Thanks, Jim

 

It'll cost you more to do that than to buy a new one.

 

https://www.rockauto.com/en/catalog/...+cylinder,1952

Not to expensive, soak the brake line with PB Blaster for a couple of nights.
I haven’t rebuilt a wheel cylinder since the early seventies