topferment

I have a 66 Barracuda with factory power brakes with front discs. However a previous owner removed the booster and the pedal requires excessive pressure to stop the car.
I know this is a rare option on this car, will the vacuum booster on any later model A bodies with power brakes fit on this car?
The power brake master cylinders for this car are available reconditioned and are a single reservoir I believe. Thanks for any help!

78D200

Disc brakes require a lot more pressure than drums do. I'm unsure if a later A-body power booster will fit but it sure will help out with the pedal.

Someone on here I'm sure will be able to tell you what will fit.

bremereric

Your best bet is to get the brake booster unloaded and reuse the master cylinder you have now...unloaded means without the master cylinder...the master cylinder must have two separate compartments...the one in front is smaller and feeds the rear drums...the rear one is larger and feeds the front disks...good luck..Eric

66Barracuda

Hi you need photos of the original underhood power brake set-up, let me know. I have a '66 with factory power brakes (4-wheel drum) and they are pretty trouble free ... though I know most people remove the power / vacuum booster pieces.

TVLynn

I had manual disk brakes on My 67 Coronet had a great pedal feel. What do you consider hard ?? Do you have the correct master. Is it a single reservoir or dual ? I would bet any of the small A body boosters would work with a later 4 bolt master and the corresponding re routing of the brake lines for a dual reservoir
It could be a bad wheel cylinder, bad rubber lines rust on backing plates. lots of different things will cause hard pedal... Heavy duty return springs are not better than the stockers

440roadrunner

The other thing you might check out is master bore size. If you have "plenty" of pedal height, you might get a master with a smaller bore. This will give you more "leverage" but will "use more pedal" stroke.