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portioning valve

Discussion in '40- & 55-Series Tech' started by Guest, Mar 26, 2003.

  1. Guest

    Guest Guest

    I VE GOT A MASTER CYLINDER FROM A LATER 60 ,AM INSTALLING FRONT SHAFTS / BRAKES FROM AN 84 TOY, DISC COVERSION IN THE REAR, INTO A 77FJ40 ,MASTER HAS PORTION VALVE ON IT , DO I NEED TO ADD ANOTHER VALVE TO REAR BECUASE OF DISCS IN REAR ARE CHEVY ? ANY INFO WOULD BE GREATLY APRICIATED. THANKS GUYS.
     
  2. sfrolich

    sfrolich

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    Sorry for my ignorance but does the FJ60 master have 4 wheel disk or 2 wheel disk?

    This is more of a trial and error thing but most certainly, the fixed porportioning valve you have won't have the correct porportioning.

    Go to www.summitracing.com and order an adjustable porportioning valve for $40-50. and put that in instead of the fixed one. There is a chance you might need to use both but probably not.

    Scott (71 FJ40 Monte Carlo rear disk, 72' 4Runner front disk, 76 FJ40 Master with a single adjustable porportioning valve)
     
  3. woody

    woody Internet Fireman Staff Member

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    60 master is front disc only. You'll need to pull the residual valve from the rear circuit, remove the factory prop valve, and install a Summit or other adjustable one to balance the system.
     
  4. Guest

    Guest Guest

    thanks guys for the info, great site ! later .