Originally Posted by John_Kunkel
Originally Posted by ruderunner


A proportioning valve is needed for disc drum systems. It's not required for drum drum or disc disc.


And, yet, the factory often uses them in disc/disc installations. IMO, the only way to know is actual testing...slam on the brakes at speed and see what happens.


Why not include the entire statement. I did say it's good to have for fine tuning.

Angry white pureblood male