A customer recently asked me if I had a rebuild kit for the Bonaldi proportioning valve used on his de Tomaso Pantera. I didn't then, but I do now! As usual, I've also written articles that describe how to disassemble and rebuild the valve. Here are the links:
Brake valve disassembly:
Brake valve rebuild:
I'm interested in learning if this valve was used on any other Italian cars, such as Fiats or Alfa Romeos. Please use the contact form to clue me in if you know of other applications.