Picking a master cylinder for a 69 barracuda

[Nevercouldfigureitout]

I have a 1969 barracuda that was a slant six base car. It’s been upgraded with front disc brakes and drum rears. I’m wanting to upgrade the master cylinder and add a brake booster. I’ve been looking at the right stuff kits and don’t know which one to choose. Also once I buy a kit, is there any other associated parts to buy with it? All the old parts were long gone when I got the car and I’d like a bolt in kit before I get started on brake lines

 

[66Valiant528]

I'd recommend a Dr Diff Master and regulator. It's late model and won't look oem but works great. Have 1 in my B body with A body front discs. Never had a great pedal before. Feels great now.

 

[mvh]

Well, if you just look up the master cylinder and booster for a 1969 Barracuda with power disk brakes, they would bolt right in. Simple as that.

 

[TheGrateRonzini]

 

[Jarlaxle]

If you want the later (lighter, cheaper) master cylinder, a booster and master for a 79 Volare should work. If you have an earlier booster, you need the 2 to 4 bolt adapter. (Mancini and MP have them.) If so...ask for a MC for a 1980 Aspen.

 

[BillGrissom]

Correct boosters are getting rare and usually need a rebuild ($350). That said, I found one for my 1965 Newport on rockauto a few years ago for $75, but just lucky. A-bodies need the stand-off bracket with lever which you must source from a used car. I put one from a junkyard 1974 Dart slant on my 1965 Dart 273. Forgot why I didn't use that booster (too large?), instead used a junkyard one from a 1990's Intrepid, filing the bolt holes slightly and using nuts on both sides to tilt it up slightly to clear my aftermarket valve covers. I could install many 2-bolt Master Cylinders on that booster (not Intrepid since tilted reservoir). I used one from a late-1990's Breeze w/ ABS (2-ports dbl-flare), but a 1980's Dodge truck MC "should work". See my avatar. There was a full kit on ebay for $175 a few years ago, using a GM-style booster.

 

[Nevercouldfigureitout]

I don’t care about period correct so I wanted to get something that’s great functional wise and not super high. Plus I got confused with all sorts of bore sizes and other stuff and never saw a number one consensus of the go to with power booster and the block under.

 

[Ironracer]

The bore size affects the amount of juice yer throwing out. The smaller bore has better modulation, in my opinion, where a larger bore kinda shoots it all in.. Many others here can explain that better