67 Mustang Master Brake Cylinder Drum To Disk Help

Ceazer

Member
Aug 4, 2017
4
1
13
43
im new here and can use some help. I have looked all over and can't find much info on this. I am slowly converting my front brakes from drum to disk. I already did this on the back brakes from a crown Vic police interceptor Anyways my question is on the master cylinder I've been told from my local mustang shop that I can use my existing master cylinder but I have to remove something from it. Does anyone know how you convert a M/C for drum to disk?
 
  • Sponsors(?)


zookeeper

Founding Member
Aug 25, 2001
3,338
48
109
58
Rogue River, Oregon
Seems like I read years ago that you need to remove a residual check valve from the master cylinder where the lines come out. The pictures I saw showed a small valve being picked out of the line with a small punch. Or you could buy a master cylinder with the right bore (1" seems about right) designed for discs. They're fairly inexpensive.
 

Ceazer

Member
Aug 4, 2017
4
1
13
43
When I called my local mustang store and and ask for one that is disk/disk they told me that they normally reuse the original drum/drum master cylinder and all you have to do is remove something so I was hoping that someone knew how to do this and maybe had some pics to go along with it. I will buy one if I have to but money is an issue. If I can use something that I have or can do it myself I'd rather go that way and that's most of the time. Anyways thank you for the info.
 

horse sence

That $5 hooker turn out to be a guy
Mod Dude
Nov 29, 1999
9,219
3,672
233
Wile Coyote's stunt double
You have to remove the brass seat where the line screws into the master cylinder. A screw ran into the seat ,and pull and it comes out .Remove the valve behing it ,and replace the brass seat .
 

The Shemdogg

Active Member
Mar 15, 2016
137
23
38
42
san jose CA
Or just get the right mc, theyre really not expensive. I think I paid $60 for my disc/drum mc from napa. I got the spindles, booster, and prp valve from a 79 granada, got new rotors, calipers, n bearnings. threw new tie rods, idler arms, and lower control arms while i was in there

shem
 

imp

Mustang Master
Jul 13, 2017
531
105
83
69
When I put front discs on my '65 "K" car, off a GT-500, 67 or 68, I kept the old, original cast iron Master Cylinder, with the screw-on cap, (no power assist), tried 'em out without a proportioning valve, found no untowards tendency for unequal braking as was expected, so drove with it so. Pedal pressure was very close to the drums for normal braking. Hard stops, the big discs worked like hell! Sorry I had no camera back then.......BTW, I don't make this :poo: up. Doubt any bull:poo:ter could supply the detail I can. imp
 
Thread starter Similar threads Forum Replies Date
C No brakes 1996 - 2004 SN95 Mustang -General/Talk- 5
B Mustang Brake Master Pipe size Other Auto Tech 7
ReplayMan 1991 Mustang brake booster and master cylinder $50 Wheels Tires Brakes 6
mrmustangman357 power brake booster and master cyl for 66 mustang Wheels/Tires/Brakes 3
S master cylinder replacement 64.5 mustang 1965 - 1973 Classic Mustangs -General/Talk- 10
T Need Help: 87 T-bird Master Cylinder In 66 Mustang Classic Mustang Specific Tech 1
stang-geoff Is the 87-93 master cylinder a direct bolt on for an 86 mustang gt? Fox 5.0 Mustang Tech 14
MRaburn S197 Ford Mustang MSD Launch Master Install StangNet Site News 0
8 1973 Mustang Master Cylinder Swap?? Classic Mustang Specific Tech 3
U What's it Worth? 67 Ford Mustang Thermactor Smog System What is it Worth?!?!? 0
G Hello From Socal 1996 - 2004 SN95 Mustang -General/Talk- 0
L Clutch brake pedal problems 1965 Mustang Classic Mustang Specific Tech 3
F For Sale 1977 Mustang 2 Steering Column!! Mustang II Parts 0
D Codes pulled from mustang SN95 4.6L Mustang Tech 0
6 San antonio mustang owner The Welcome Wagon 1
S Very high mileage Mustang for sale 2005 - 2009 Specific Tech 5
S Hello new Mustang owner here The Welcome Wagon 1
H 2000 mustang gt should I supercharge 1996 - 2004 SN95 Mustang -General/Talk- 4
A New to the Mustang game The Welcome Wagon 3
A 93 mustang premium sound radio question 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 15
M 1994 - 1998 SN95 Mustang Paint/Color Guide - Production #'s too! 1996 - 2004 SN95 Mustang -General/Talk- 0
T 2016 Mustang GT *Random Misfire's CEL* Charge Motion Valve "Flaps" in Intake Manifold 2015+ (S550) Mustang -General/Talk 3
A Tire Help 2005 - 2009 Specific Tech 1
F Fox 88 mustang 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 25
M 97 Cougar 3.8 to 96 Mustang 3.8 swap....What is easiest non Mustang swap?? 1996 - 2004 SN95 Mustang -General/Talk- 0
B For Sale 99 - 04 Mustang H-pipe with working Cats for sale Other Classifieds 0
M 2002 Mustang GT Rear End Squeak 1996 - 2004 SN95 Mustang -General/Talk- 3
nickyb Craigslist freebie, mustang 2 missing motor trans rear and front clip,Las Vegas. 1974 - 1978 Mustang II Talk & Tech 5
B Found a project mustang - I blame Warhorse Racing for this 1996 - 2004 SN95 Mustang -General/Talk- 0
J For Sale Used 2015-2017 MUSTANG Wheel Rim 18x8 Aluminum 5 Spoke Wheels Tires Brakes 0
R Electrical 89 Mustang - Dead battery - Clicking from circuit breaker Fox 5.0 Mustang Tech 6
T MS3 Gold Box (87-93 Mustang) - IAC Valve Mode Question Digital Self-tuning Forum 4
B 1994 mustang cooling fan wiring? PLEASE HELP!! 1994 - 1995 Specific Tech 0
Mustang5L5 Haggerty’s 64-15 Mustang pricing 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 19
C 88 Mustang won’t start? Fox 5.0 Mustang Tech 5
8 Coolant leak Fox 5.0 Mustang Tech 4
P Will any Ford SOHC 4.0 fit my 08 Mustang? 2005 - 2009 Specific Tech 1
A Progress Thread 1996 mustang gt build 1996 - 2004 SN95 Mustang -General/Talk- 3
Drumsgtret 2008 Mustang Convertible GT- Cluster Assembly upgrade 2005 - 2009 Specific Tech 1
A Greetings Mustang lovers The Welcome Wagon 3
M 2001 GT no start electrical issue SN95 4.6L Mustang Tech 10
N Replacement Options for 2001 Mustang SVT Tail Lights-Damaged in Hail Storm SN95 4.6L Mustang Tech 0
S 66 Mustang front brakes drum to disc conversion 1965 - 1973 Classic Mustangs -General/Talk- 1
R 1969 mustang headlight upgrade wiring kit 1965 - 1973 Classic Mustangs -General/Talk- 0
J 2001 MUSTANG V6 SPUTTERS WHEN ACCELERATING SN95 V6 Mustang Tech 7
T No power to the MAF Sensor 1996 - 2004 SN95 Mustang -General/Talk- 0
Andresquintana.mma Fox What coilovers are you running on your street/drag mustang? 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 10
E Fastlane Motorsports dyno tuning ? 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 0
D For Sale 1993 Ford Mustang LX Convertible 2.3L NE Wisconsin Fox Body Mustangs For Sale (1979-93) 0
DudeStang For Sale FS: Roush Axle Backs Exhaust Parts 2
Similar threads