Brake fluid

Discussion in 'General Ranchero Help' started by FrenchFan, Jul 4, 2021.

  1. FrenchFan

    FrenchFan In Overdrive SILVER MEMBER

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    At First happy 4th July to you guys ;-)

    Drove the Ranchero yesterday and found the brake pedal was a bit spongy, would like to change the brake fluid for new but what kind of brake fluid do i have to use in this old babe , DOT 3,4 ??? (75 Ranchero)

    Thanks,

    Eric
     
  2. 65restomod

    65restomod In Overdrive BRONZE MEMBER

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    If you want you can use DOT 3 or 4 or 5 they are compatible higher numbers have higher boiling point
    Google compatible brake fluids in my opinion 3 or 4 is good enough
    Do not mix DOT 5.1
    If you use 5.1 the whole system has to be drained ,and flushed maybe with denatured alcohol and the dry every thing with compressed air IMO you do not need 5.1
     
    Last edited: Jul 4, 2021
  3. Jeff B

    Jeff B In Maximum Overdrive BRONZE MEMBER

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    DOT 3 and check your flex lines as well for cracking or swelling.
     
  4. handy_andy_cv64

    handy_andy_cv64 In Maximum Overdrive SILVER MEMBER

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    I agree, but make sure you don't have leaks at the master cylinder, the front calipers or the rear brake cylinders also.
     
  5. FrenchFan

    FrenchFan In Overdrive SILVER MEMBER

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    Allright, thank you very much, very clear answer.

    Thanks, i will do.

    So a complete check, will do, thanks Andy.
     
  6. Clark

    Clark In Maximum Overdrive

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    I used Dot 4 in my '75 Ranchero with no issue - save for the fact that I found I could get not brake fluid out of one of the rear drum brake cylinders! A lot of nasty looking crap came out of those brake lines before they pumped out clear!
     
  7. FrenchFan

    FrenchFan In Overdrive SILVER MEMBER

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    Maybe i will have this kind of surprise too, when i drive the car generally during the 2/3 first brakings the left rear wheel is blocking even when i brake lightly, after this symptom stops except if i have to do a hard braking...

    I just realize you'r from Colorado Clark, my 75 came from your state ;-)
     
  8. 1965 Ranchero 66G

    1965 Ranchero 66G In Maximum Overdrive Unubtanium Member

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    On yours i think i would pull the right rear wheel and brake drum and look for leakage from the wheel cylinder or axle seal that would also cause grabbing.
     
  9. FrenchFan

    FrenchFan In Overdrive SILVER MEMBER

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    That's a good advice, i will check, thanks 1965 Ranchero 66G
     
  10. Clark

    Clark In Maximum Overdrive

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  11. FrenchFan

    FrenchFan In Overdrive SILVER MEMBER

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  12. handy_andy_cv64

    handy_andy_cv64 In Maximum Overdrive SILVER MEMBER

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    Find an American service member shipping their household goods to Europe, pay them a nice stipend for the service. Shhhh, we won't say anything to French Customs....
     
    FrenchFan likes this.
  13. FrenchFan

    FrenchFan In Overdrive SILVER MEMBER

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    Good idea, unfortunatly ther's no more US bases in France ....
     
  14. Kiwirancher

    Kiwirancher In Fourth Gear

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    Location:
    Gisborne , New Zealand .
    Freight has certainly become an expense, I recently ordered some top and bottom spring isolators from Macs. Cost me more in freight than for the parts . NZ is a fair way away from the US. Came in about 7 days though.
    Denis.
     
  15. uk ranchero

    uk ranchero In Third Gear

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    if its also used on a mustang. try costing it from a UK supplier. the parts will be dearer but shipping might be less.
     
  16. FrenchFan

    FrenchFan In Overdrive SILVER MEMBER

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    OOooops, sorry, didn't see your answer, think i'm gonna stay with the drums, i made a good bleed with new fluid, all is OK now, thanks UK ranchero.
     

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