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CJ5 Brakes, hard to stop??

Discussion in 'Early CJ5 and CJ6 Tech' started by Willy-N, May 28, 2005.

  1. May 28, 2005
    Willy-N

    Willy-N Member

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    May 24, 2005
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    140
    I have a good pedal no spongyness or going to the floor but these brakes just take a REALl hard push to stop the jeep! Is this normal for this year of Jeep? Seems that they are adjusted right but maybe there is some rust on the shoes and drums from sitting a while. No leakage around the drums like a seal is bad also. Any thoughts on this? Thanks, Mark
     
  2. May 28, 2005
    blevisay

    blevisay Oh Noooooooooooooooo! Staff Member

    Portland Tn.
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  3. May 28, 2005
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
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    They're not power. You may be used to that with the M37 though.
     
  4. May 28, 2005
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    Funny, I was gonna ask how his M37 brakes were. They have 14" drums.
     
  5. May 28, 2005
    w3srl

    w3srl All-around swell dude Staff Member

    Port Orange, FL
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    Ya know, I was getting ready to ask the same question as Willy-N. Dad-in-law's M38 has developed a REALLY stiff brake pedal in the past year. Mind you, it still stops in a (mostly) straight line, but it takes much more pedal pressure than it ever used to to get it stopped. I've bought all the parts to overhaul the hydraulic system, but does anyone have any insight as to what part would make it act like this? The brakes are all 100% stock 9" drums with the MC under the floor....
     
  6. May 28, 2005
    Willy-N

    Willy-N Member

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    Yes used to not having power brakes with the 48 Power Wagon and the 53 M37 I had. Just with those I could at least skid the tires with a hard pedal. Do know that if every thing is not perfect the old ones don't stop near as good as when there adjusted right ect. The PWs and M37s have Toe and Heal adjustments so they are tricky to adjust right. I think I have 9" to 10" drums sure not 11" ones. If I remember right the ones in the military I drove 30 some years ago stopped better? Driving the old iron you learn to leave plenty of room for stopping! These new cars can stop on a dime and love to do it in front of you. I hope to pull the drums tonight, it is in the 90s degs out and was waiting for it to cool off some. Mark
     
  7. May 28, 2005
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
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    I'd guess they're the stock 9" drums. Not real good for stopping.

    I suggest 11" drums. http://www.earlycj5.com/tech/brakes/11InchSwap/11_swap.shtml
     
  8. May 28, 2005
    Posimoto

    Posimoto Hopeless JEEP Addict

    Minden, Nevada
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    9" brakes are about as good as Fred Flinstone's method.
     
  9. May 28, 2005
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    If your brakes are wet Freds' method is probably better.
     
  10. May 28, 2005
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    Every old CJ I've ever been around was just like you describe, only thing I can think of would be the probable use it's seen. Linings got dirty, greasy, scratched, grooved etc., of course the drum gets the same way.
     
  11. May 28, 2005
    blevisay

    blevisay Oh Noooooooooooooooo! Staff Member

    Portland Tn.
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    actually

    I had good luck with the 9".make sure they are clean and adusted
     
  12. May 28, 2005
    Mcruff

    Mcruff Earlycj5 Machinist

    Albertville, AL
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    Sep 22, 2002
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    Stopping is highly over rated.:D
    Ah just kiddin, if you have the 9" brakes there marginal from what I hear, I had factory 10" drums all around, they worked pretty good but they were prone to fade under ahrd use, especially in the summer heat. I now have a dana 30 up front with disk brakes and the 10" drums in the rear, they stop really good even though the pedal has more than stock pedal travel, the watercrossing at Tellico never affected them one bit. I may still drill my rear drums to aid in stopping though.
     
  13. May 28, 2005
    Willy-N

    Willy-N Member

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    Right on the button! Just pulled the drums and found one with a section of lining gone and the rest 1/8"-3/16" lining left. They were dirty heat cracked, decomposing, dirty, ect! The drums tho looked good no gruves or signs of rivet damage. No lip in them either I could slide them right off the shoes after I hit them lightly a few times with a hammer. Cylinders are not leaking and no signs of leakage inside the drums. I think it is in for a new set of lining to say the least. Yes they are the 9" drums to. Mark
     
  14. May 31, 2005
    weedy

    weedy Member

    Conroe, Tx
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    Apr 19, 2005
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    156
    Auto Zone has the best price. I ordered mine on line and got free shipping. Part # is 40 for front and back I think.
     
  15. May 31, 2005
    Willy-N

    Willy-N Member

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    May 24, 2005
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    Brakes, rims and tires are done waiting for my new springs and shocks! Got the tub bed lined yesterday and need to beef up the 2 front role bar mounts today to finish it. Be a few more days till I can drive it again to test them but it is coming along just fine now. Mark
     
  16. May 31, 2005
    arts cj5

    arts cj5 New Member

    elmira ny
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    yes you must stand on the pedel to stop //////////you must plan your stops ahead of time
     
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