Brake Master Cylinder Rebuild Kit

[mr68shelby]

Does anyone know a source for a master cylinder rebuild kit for my 68? The only one I can find is from Ecklers and it only has the two pistons in the kit. It does not have the seats and the springs/valves behind them.

Are the seats and the springs/valves the same in another application?

My master cylinder needs to be sleeved and I was planning on putting the rebuild kit in myself rather than have the shop do it.

Thanks. Mike