new master cylinder or rebuild?

The raybestos # I have for a new replacement master is MC 36221. Thats the one looks nothing like original. Found out from Raybestos that it's only available in cast iron.

Who is gonna buy it? It's looks arent original,it's not hi perf and it's not alum.

Hey Dan; Is MC 336421 cast as well?


i have disc/drum,manual and i use an aluminum 2 bolt master 15/16 bore from a 1988 manual disc/drum dakota,,,,

This sounds like a sane approach. I'll look into this part.