FR-425
Used to be a road here.
- Joined
- November 21, 2013
- Messages
- 2,621
- Reaction score
- 114
- City, State
- Phoenix, AZ.
- Year, Model & Trim Level
- 1994 Explorer Limited
Have to get in an e-brawl with ya on the master cylinder operation though. 
Dual piston operation: Note the statement where the "primary" piston moves the "secondary"
Also noteworthy: It doesn't matter which piston is primary in relation to front brake or rear. That's a vehicle specific choice. Whether fronts come on first or rear.
http://www.thecarguys.net/brake_system_operation.pdf

Dual piston operation: Note the statement where the "primary" piston moves the "secondary"
Also noteworthy: It doesn't matter which piston is primary in relation to front brake or rear. That's a vehicle specific choice. Whether fronts come on first or rear.
http://www.thecarguys.net/brake_system_operation.pdf