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1969 B body manual disc brakes help #1181705
02/18/12 06:59 PM
02/18/12 06:59 PM

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Anonymous
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Ok, here is my dillema. I want to run a factory mopar style disc brake set up on my car with 10 inch rear drums and a 1969 B body manual master cylinder. Is there any simple type swap that I can do to make that happen? Im ok with running a 1970 and newer spindle, rotor and caliper set up. The issue is that I have to run a 1969 B body manual master cylinder for sure. Any help would be great

Re: 1969 B body manual disc brakes help [Re: ] #1181706
02/18/12 08:03 PM
02/18/12 08:03 PM
Joined: Feb 2009
Posts: 1,274
Ontario.Canada
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can.al Offline
pro stock
can.al  Offline
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Joined: Feb 2009
Posts: 1,274
Ontario.Canada
..anything '73 and later A E or F body.
..transfer everything between the ball joints.
..remove the residual pressure valve from the master cylinder to the front lines.
..big rear tires,smaller rear wheel cylinders or prop valve in rear line.

Re: 1969 B body manual disc brakes help [Re: can.al] #1181707
02/18/12 09:27 PM
02/18/12 09:27 PM
Joined: Jul 2005
Posts: 1,472
Overland Park, KS.
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Joshs68 Offline
pro stock
Joshs68  Offline
pro stock
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Joined: Jul 2005
Posts: 1,472
Overland Park, KS.
my 68 has manual disks/drums. used 73 satellite knuckles and outer parts. I dont remember what master cylinder was used. used a proportioning valve from a dart with factory manual disk/drum setup

Re: 1969 B body manual disc brakes help [Re: ] #1181708
02/18/12 09:28 PM
02/18/12 09:28 PM
Joined: Jun 2003
Posts: 21,346
It's a dry heat
gtx6970 Offline
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I'll have to ck but I don't think the 69 B-body disc brake master cylinder has provisions to retain a manual brake push rod.

Re: 1969 B body manual disc brakes help [Re: ] #1181709
02/18/12 11:46 PM
02/18/12 11:46 PM
Joined: Mar 2009
Posts: 60
St. Louis, MO
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moparbuff Offline
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St. Louis, MO
I use 1970 B-Body manual disc brake master cylinder with manual brake push rod.. Still have the original 1969 GTX disc brakes on my car. It has been this way for 20 years.

Re: 1969 B body manual disc brakes help [Re: moparbuff] #1181710
02/19/12 12:32 AM
02/19/12 12:32 AM
Joined: Jan 2003
Posts: 5,268
NY
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70440+6bbl Offline
master
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NY
Was a '66-70 B-body even available with manual discs? I don't think so, however, it seems most rebuilt master cylinders with after market rebuild kits I have run across tend to have the retaining ring groove machined in the piston.

Re: 1969 B body manual disc brakes help [Re: 70440+6bbl] #1181711
02/19/12 08:02 AM
02/19/12 08:02 AM
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Posts: 21,050
Niles , Ohio
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therocks Offline
oh wait.but hey.lets see.oh yeah.
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oh wait.but hey.lets see.oh yeah.
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Posts: 21,050
Niles , Ohio
I run 69/70 C body disc/drum masters in all my conversions.My 65 has one in it now.Been in at least 15 years.It manual brakes.Rocky


Chrysler Firepower
Re: 1969 B body manual disc brakes help [Re: therocks] #1181712
02/19/12 11:57 AM
02/19/12 11:57 AM

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I dont have a problem running a body knuckles, calipers and rotors. The issue is maintaining the correct looking master cylinder.

Re: 1969 B body manual disc brakes help [Re: ] #1181713
02/19/12 12:51 PM
02/19/12 12:51 PM
Joined: Jan 2003
Posts: 3,967
S.I. N.Y.
1MYTGTX Offline
master
1MYTGTX  Offline
master

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Posts: 3,967
S.I. N.Y.
When I first got my SSBC front disc kit to replace my manual drum brakes, it came with what I believe was an A body disc master.
Ran the car with this for a while till I upgraded to the correct Bendix power booster & master...

7079353-chris-engine.jpg (268 downloads)

1MYTGTX
Re: 1969 B body manual disc brakes help [Re: 70440+6bbl] #1181714
02/19/12 12:56 PM
02/19/12 12:56 PM
Joined: Jun 2003
Posts: 21,346
It's a dry heat
gtx6970 Offline
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It's a dry heat
Quote:

Was a '66-70 B-body even available with manual discs?




Not as far as I know,,,at least not between 1967 and 1971

The only available manual disc brake car was A-bodies

Re: 1969 B body manual disc brakes help [Re: ] #1181715
02/20/12 01:07 PM
02/20/12 01:07 PM
Joined: Nov 2003
Posts: 2,715
closer to Canadian beer!
torkrules Offline
I'm neurotic
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Joined: Nov 2003
Posts: 2,715
closer to Canadian beer!
Quote:

Ok, here is my dillema. I want to run a factory mopar style disc brake set up on my car with 10 inch rear drums and a 1969 B body manual master cylinder. Is there any simple type swap that I can do to make that happen? Im ok with running a 1970 and newer spindle, rotor and caliper set up. The issue is that I have to run a 1969 B body manual master cylinder for sure. Any help would be great




What I did was use the rotors,calipers, and lower control arms from a 70 B body. It uses a different sway bar and mount so the calipers don't interfere with outer mounts of the sway bar.

You need to use a master cylinder without the residual valve. I used the newer style Mopar master cylinder (the flat one, not the angled one)







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