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14FF and stock mstrcyl with disc conv

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by spoolnaround, Jul 28, 2002.

  1. spoolnaround

    spoolnaround 1/2 ton status

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    How can a stock master cylinder work with a 14ff disc brake conv? The resivour for the rear brakes is so small how can that be enough for the bigger pistons in the calipers? Are you guys using a different master cylinder? /forums/images/icons/confused.gif It just doesnt seem it would work.
     
  2. SCOOBYDANNN

    SCOOBYDANNN 1/2 ton status

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    im using factory everything---master, proportioning valve, etc and the truck stops on a dime--
     
  3. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    Same here except that my truck will stop on a dime and give you eleven cents change. /forums/images/icons/laugh.gif
     
  4. DieselDan

    DieselDan 1/2 ton status

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    The extra fluid capacity is needed when the pads wear down and the caliper pistons are extended out more. If you keep an eye on your brake fluid and add more as the pads wear (then suck it out when you put new pads in), every thing's cool. /forums/images/icons/cool.gif

    That being said, I've found a late model master cylinder (four wheel disc) that I'm saving for my Jimmy.
     
  5. outlaw612

    outlaw612 1/2 ton status

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    I went to a 1 ton MC. Everyone says you dont need to, but I like the extra capacity the larger MC holds and it has a bigger bore to push more fluid.
     
  6. spoolnaround

    spoolnaround 1/2 ton status

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    Great info as always guys, thanks.
     
  7. woody9

    woody9 1/2 ton status

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    Outlaw, when you went to the 1 ton, did u have to change to booster as well?
    Toying with doing similar on my 91.. but not sure how it'll effect the rear anti-lock & booster...?
     
  8. Sandman

    Sandman 3/4 ton status Author

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    I put on the 1-ton master when I did the Disc conversion and kept the same booster. Don't know how it would act with your anti-lock.
     
  9. outlaw612

    outlaw612 1/2 ton status

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    Nope, just installed the 1 ton MC into my 1/2 ton booster.
     
  10. BILLY RAY

    BILLY RAY 1/2 ton status

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    I have a 85 K5. So what year 1 ton master cyl. would I ask for and does it have the metal style cap with the top latch or just the normal push down latch? /forums/images/icons/confused.gif
     
  11. outlaw612

    outlaw612 1/2 ton status

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    I dont remember what year I got for sure. It was an early 80's. Just make sure its the Non-Hydro MC.
     

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