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  •  » FYI Ford, Classic Mustang Tech Discussion
  •  » MS Disc/Disc conversion, '70 Drum/Drum distribution block.

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    4/06/2016 3:33 PM  #1

    Gearz
    FYI FORD Member

    Offline

    From: Netherlands Europe
    Registered: 5/27/2014
    Posts: 19

    MS Disc/Disc conversion, '70 Drum/Drum distribution block.

    Hi all,
    I had my 4 wheel disc brake plans and parts laying around for a year or two meanwhile upgrading to a rear 9", now picking up where I left and ran into a question or two. Been searching the forum but i'm still a little confused so any help would be very much appreciated.

    I've got a '70 Mustang (Factory Non-Power 4 wheel Drum Brakes) , Changing now to 2008GT brakes all around with Mustang Steve Brackets and Disc/Disc Master Cylinder.. (the plastic/aluminum 1" bore with engine side outlets).
    I wondered if I could use the original ('70 Drum/Drum) distribution block mounted at the inside fender and just add an adjustable prop valve and be done?
    Or do I have to use a PV4 Combination Valve. I've got both and I planned to use the adjustable prop valve plumbed in the rear line. Easiest would be to run the 70 Distribution Block, but in case the PV4 is better or necessary, do I need to change the rear Brakeline to 1/4" or keep it 3/16" ?

    Thanks in advance !
     

     

    4/06/2016 7:12 PM  #2

    jerseyjoe
    I FYI 24-7

    Offline

    Registered: 4/01/2013
    Posts: 789

    Re: MS Disc/Disc conversion, '70 Drum/Drum distribution block.

    Hi Gearz...I used the original drum/drum non power distribution block on my 67 FB without any problems at all when I went to 2004 Cobra discs all around with MS adapters...and No Prop valve...although I used a brand new 1" original type Raybestos MC36251  M/S with residual valve removed...your M/S may require a prop valve based on  its design....and  do not change brake line size....jj

    Last edited by jerseyjoe (4/06/2016 7:37 PM)

    "Never put a question mark where God put a period "  Richard Petty
     

    4/06/2016 8:44 PM  #3

    MS
    Forum Originator

    Offline

    From: Canyon Lake, Texas
    Registered: 1/24/2013
    Posts: 12,077

    Re: MS Disc/Disc conversion, '70 Drum/Drum distribution block.

    It will work perfectly fine to simply plumb in an adjustable valve downstream of the factory drum brake differential pressure valve.
    Use 3/16" tubing.

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
     

    4/07/2016 12:55 PM  #4

    Gearz
    FYI FORD Member

    Offline

    From: Netherlands Europe
    Registered: 5/27/2014
    Posts: 19

    Re: MS Disc/Disc conversion, '70 Drum/Drum distribution block.

    Thanks for the quick reply Jerseyjoe and Steve, just what I thought and hoped for
    Always good for a little peace of mind to ask for a 2nd opinion before the tools come out.

    Hope to have it all figured out now, I'll make sure to upload some pics once it's all working.

    Mitch.

       •Thread Starter
     

     

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  •  »  MS Disc/Disc conversion, '70 Drum/Drum distribution block.

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