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Master cylinder Replacement

Discussion in 'The Garage' started by Hardcore, Dec 31, 2003.

  1. Hardcore

    Hardcore 1/2 ton status

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    My master cylinder in the K5 (1990) just took a dump. Going to get one from Napa. Can I get one from a 3/4 or 1 ton from that same year? Will it bolt up to the brake booster and all and will it give me any better braking with my 1-ton axles? /forums/images/graemlins/k5.gif
     
  2. CHEVY 4WD

    CHEVY 4WD 1/2 ton status

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    I know a 79(mabe) 78 3/4ton MC will take the place of a 84... take your with you and have them take a few out Im not to sure if mine gave me any better braking though because I also changed my front callipers and pads and converted to rear disks when I changed it /forums/images/graemlins/thumb.gif someone posted the otherday about what 1ton non hydrobost fits
     
  3. R72K5

    R72K5 Banned

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    no the lines are swapped backwards from 1/2 ton to 3/4 and 1 ton, you should not need to go to larger m/c if your brake syhstem is in good shape, there is no need to swap

    good luck
     
  4. Triaged

    Triaged 1/2 ton status

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    The 1-ton MC isn't really an inprovement. It has a bigger bore that will make your peddle firmer and require more effort to stop. On the other hand a 3/4-ton booster is often a double diaphram and will provide for much less peddle effort...that is how they can get away with the bigger bore (same with Hydro-Leak...I mean Boost /forums/images/graemlins/grin.gif)
     
  5. Hardcore

    Hardcore 1/2 ton status

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    [ QUOTE ]
    The 1-ton MC isn't really an inprovement. It has a bigger bore that will make your peddle firmer and require more effort to stop. On the other hand a 3/4-ton booster is often a double diaphram and will provide for much less peddle effort...that is how they can get away with the bigger bore (same with Hydro-Leak...I mean Boost /forums/images/graemlins/grin.gif)

    [/ QUOTE ]

    So would the 3/4 ton MC be a direct swap and will it provide any benefit to the 1/2 ton /forums/images/graemlins/confused.gif /forums/images/graemlins/ears.gif
     
  6. CHEVY 4WD

    CHEVY 4WD 1/2 ton status

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    all I know is yes it is a dirrect swap
     
  7. Hardcore

    Hardcore 1/2 ton status

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    Anyone else, anyone done the swap on a late model truck with ABS??? /forums/images/graemlins/1zhelp.gif /forums/images/graemlins/ears.gif
     

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