Technical Any vehicles come with disc/drum non power assist?

Hmnn, now does a dual m/c share fluid with each other? I’ve never studied one to see, just know that as my pads up front wear, only one side gets lower on fluid. With a single pot that I have, after a few stops with the bad wheel cylinder, I had no pedal at all. My ASSumption was I’d still have front or rear brakes with a lower but usable pedal that needed to be used gingerly, I/e slow the heck way down and putt home slowly w/o using the ebrake.

 

The Corvair never had a factory disc brake option. Drum only through the 1969 end of production.

GM, generally, and Chevrolet in particular offered metallic brakes as an option, and you can find several aftermarket conversions to put disc brakes on Corvair, but nothing that I could find from the factory.

I just checked the 1969 Corvair sales brochure. There was info on safety, quick steering and positraction options, but nothing on disc brakes.

 

My favorite master cylinder for non assisted brake conversions is the Mustang 2 non power master cylinder. I use an adjustable proportioning valve. It is on my avatar.

 

Read the first line of my statement. I have metallic linings on the car now. I AM AWARE THAT DISCS ARE A CONVERSION FOR CORVAIR.

 

depends on the master, some equalize, some don't. When they take a dump they usually loose both ends. In my time on my own cars ('68 til now) I have lost more master cylinders then wheel cylinders. On customer cars I have changed more master cylinders than wheel cylinders. I have only seen blown brake lines on cars that were not kept up.

In '95 I did pinch a rusted out line on the back of a Fairmont so the guy could get home. It was a modern car (an '80 or so) with the busted line the car had no brakes. The guy limped into the parking lot where we worked, his E brake barley worked. I pinched the line and filled the master back up, bled the fronts and gave him the keys to my house. (he had no money and I was going to fix it for him anyway) To trust a dual master is like trusting a condom. When they work they work good and when they don't they don't.

None of this is to say that you should not convert. A split master is an upgrade. I have nothing against upgrades. What I am saying is that only a fool thinks that one is fool proof. You need good brakes, the best that you can afford or tolerate (think conscience and the trad police here), but no single component is going to save your life or mine. Make the whole system work and work well and learn to use the whole system.

I am tired of burying people, I damned sure do not want you to be on that list. I have watched your posts too long to not care if you catch my drift.

 

Just curious, is POL a Hoffman Company? Maybe it's just that the magazine ads used to look just like Johnny Law and Helix ads?

 

All three of my cars have disc/drum setups. Three different master cylinders, all firewall mounted. One has a GM style proportioning valve, and other two are aftermarket adjustable prop valves on the rear line. Using 11" GM SAE type rotors and calipers up front.
My truck uses late 60's GM master designed for disc/drum, and the factory style proportioning valve.
My Austin uses a Subaru Legacy pedal assembly, and master, converted to manual, and the adjustable prop valve.
My '39 Chev coupe uses an 80's Corvette master with an adjustable prop valve also.

 

If not already mentioned 1968-1969 GTOs' had a 4 piston front disc/rear drum nonpower option I would imagine the rest of the A bodies would have had a similar option.