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Supreme Being
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Old Y Block (3/3/2010)
Hi Guys; Glad this came up. I'm looking to replace my old original master cylinder to a double pump master cylinder. Can anyone tell me what would be the best? I won't be using any booster, just the basics, and does the front valve go to the front brakes and the rear to the rear? Advanced thanks.
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Old Y Block
Drum brakes all around? If so, 65-66 Mustang is one that may work ( I think this is a dual master).
Discs in front? Most any later Ford with disc and MANUAL brakes. 75-80 Granada for one. Not sure if master bore is compatible
If drum brakes all around, does not make a difference which reservoir goes to where. If disc's, the larger reservoir does to the front (disc) brakes.
54 Victoria 312; 27T 255 Flathead, 48 Ford Conv 302, 56 Bird
Forever Ford
Midland Park, NJ
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Supreme Being
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If you dont mind I would like to make a suggestion regarding changing to a dual master cylinder.My buddy with a 55 Customline and all drum brakes put one of the booster/master cylinder kits on his and its like night and day as far as improved braking.If you are going to redo the lines to go to a dual master why not consider installing one of the booster kits?About $150.00 for new master and booster.Just a suggestion.
 She's not a Vic or a Sunliner and she has 4 doors but she's my baby!
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Forum Member
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hi with the engine not running pump the brakes to exhaust all assist hold pressure on the brake peddal and start the engine if the peddal doesn,t drop you have no vaccum assist then you can try to find out if its lack of vaccum or the booster  shakey Pete
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Forum Guru
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| Got it straightened out. My vacuum line was pinched and the push rod was out of adjustment (to short) . Adjusted that , fixed the hose and I have power brakes. Mind you it doesn't stop like my 2006 pick up but for 2 tons plus with drum brakes it's ok. I measured 20" of idle vacuum from my vacuum source at the 1/2" nipple located at the base of the carb and it seems to do the trick just fine. Thanks for all of your input. Pete
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Supreme Being
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Glad to hear it works.Now its time to add disc brakes to the front!LOL
She's not a Vic or a Sunliner and she has 4 doors but she's my baby!
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Forum Guru
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| You know, I considered adding disc brakes but haven't seen a kit that maintains the 5 on 5 bolt pattern. Most are 5 on 4.5 . Guess I'm just being picky
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Forum Guru
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Old Y Block (3/3/2010)
Hi Guys; Glad this came up. I'm looking to replace my old original master cylinder to a double pump master cylinder. Can anyone tell me what would be the best? I won't be using any booster, just the basics, and does the front valve go to the front brakes and the rear to the rear? Advanced thanks. ------------------------------------------------------------------------------------------ Old Y Block You didn't mention what body you're running but I'll tell you that I used a '67 Falcon drum brake dual reservor master cylinder on my '57. Bolts up to the two lower holes on the firewall. (Put bolts in the upper two now empty holes). I used the original pushrod and relocated the stoplight switch to the now unused opening on the original brass tee fitting on the frame rail. Both reservors are the same size, looks good and works great. The line for the front brakes goes to the rear reservor. hope this helps.
What this country needs is a good 5 cent cigar! 
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Junior Member
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| Thank you for the reply. I want to put the duel master cylinder on a 55 Fairlane. I will look for a 67 Falcon master cylinder and give it a try. Thanks to all. Old Y Block
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Supreme Being
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Is mercury bolt pattern the same as my Fairlane?Anyone know?
She's not a Vic or a Sunliner and she has 4 doors but she's my baby!
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Supreme Being
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Mark........I'm pretty sure the Merc wheels are 5 on 5,where your Ford is 5 on 4.5.
 
Paul, Boonville,MO
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