Afternoon kids. I am trying to figure out what the "perfect" master cylinder is for (drum roll please) 1940 ford juice brakes-front 9 inch rear master cylinder under floor. Now, I have asked about 100 souls today, and I have gotten the same answer.... it is either" I have NO IDEA what the master cylinder in my car came off of." or "You want something with a 15/16th's bore or mabey a 1 inch bore..." which is mabey 1000 or so various master cylinders. I would prefer something with dual bails (two ports) made out of metal(no plastic resivoirs, please!) and with a semi deep "cup" in the back of the piston (doncha just hate it when that ****er falls out of the master cylinder and You are left screaming like a schoolgirl with 1 foor out the door! Mee too....) watcha runnin?
I've used the following on drum brake equipped cars, although it is a bail cover type, which may not lend itself well to an underfloor application. It does however use a 1" bore and have a deep enough cup to prevent the rod from falling out, a return spring on the pedal helps.... I think Speedy Bill sells a 40 Ford style MC with a twist off cap better suited to underfloor applications.
see, that was actually my first choice. BUT, apparently, I have used most of those in my zip code already.
I ended up with the 69 pick up master. Installed it last night-WORKS *****IN! I also ordered the 67 Mustang at the same time. same bore size, but had the pedal rod attached- which was a no0go for my application (already had a good set up there.) good pedal, great resonse. Thanks Fellas! Owe Ya a beer!
I like the early Broncos 1968-1972 and all have the 9" rear to start with along with drum brakes with 15/16 wheel cylinder. If you want to get fancy go with the 1972-75 jeep were they also have the 1" cylinders for drums all the way around but also have a place on the Master for a brake pressure switch. Also they face into the frame rails if that matters.
The Jalopy Journal
