ISO replacement 1959 Master Cylinder

[PaulB]

I just had my front wheels converted to disc brakes (rear remain drum brakes) but now I need to change my master cylinder to a dual reservoir with proportioning valve. I went online to find one and there are so many models and variations I'm totally confused and ignorant which one is the right one. I could use some advice from you experts. Any suggestions as to brand and model to purchase and who to buy it from. Thank you.

 

[74 Harley]

I've heard lots of good things about Willwood components.

 

[59tbirddavid]

Go to Summit Racing, they sell from Leeds Brakes a master cylinder with rear bias adjustment. I put unit on my 59 two years ago. I have 4 wheel disc on car now. The 59 master cylinder has 4 bolts for mounting, The Leads unit uses 2 of the original studs on the firewall, easy installation. If you have the original A/C unit there isn’t room for new vacuum booster. Without A/C ,8 inch booster can be used. The Kelsey Hayes brake bellows under dash can be left in place and used if a firewall mounted vacuum booster is not used. Sounds confusing sorry but be sure to bench bleed new mast cylinder before firewall mounting.