4 wheel disk brakes

Discussion in '40- & 55-Series Tech' started by 73lndcrsr, Jan 24, 2004.

  1. 73lndcrsr

    73lndcrsr

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    I am looking into the 93 FJ80 or 88 Supra master Cylinder. If I use one of these do I still need an external proportioning valve? Anyone here running one today on their 40?

    I have searched and found conflicting info.

    Thanks for your help.
     
  2. toddslater

    toddslater

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    I am not familiar with either of those MC's. I am guessing anything short of full out ABS set up, would require you to put a prop valve in their to keep the rears from locking up prematurely. Summit has an inexpensive one.
     
  3. Bama_B

    Bama_B

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    I think the idea of using a 4 wheel disc master is that you dont need the proportionoing valve because its built in. Cant say from experience since I added one externally. 2nd the Summit.
     
  4. lone gunman

    lone gunman

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    i have 76 FJ40 with 4 whell disc brakes and no proportioning valve, i used the 4-wheel master that JT Outfitters sells, and it works great stops straight even on wet and snow covered roads. its been about a year with this setup and no problems.
     
  5. 73lndcrsr

    73lndcrsr

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    745
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    Thanks for the replies, I will give the Supra MC a try and post my findings.
     
  6. 73lndcrsr

    73lndcrsr

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    I am not having any luck locating a MC with reservoir. At least not at a decent price. It looks like the ones from my LC will fit. Anyone tried this?
     
  7. tlcgear

    tlcgear

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    [quote author=73lndcrsr link=board=1;threadid=10578;start=msg95400#msg95400 date=1075085891]
    I am not having any luck locating a MC with reservoir. At least not at a decent price. It looks like the ones from my LC will fit. Anyone tried this?
    [/quote]

    I have the same truck and I used a 76 MC and used the reservoir form the 73 MC. The only difference is that I used a proportioning valve.

    - Rico.
     
  8. 73lndcrsr

    73lndcrsr

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    What about on the Supra MC?
     
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