We are working on a 1965 F600. The master cylinder is bad, and I always get different answers to the question. The master cylinder has "midland 30037 and maybe a 1 after the 7" stamped on the bottom. Can I get a replacement, or do I just have to have it rebuilt? Any help would be greatly appreciated, this is a high school shop project. Thank you Doug

 

Doug, replacements are available through the Vendors sponsoring this site. May I suggest you post a picture of it?
You might also want to check E-bay, various types show up occasionally.