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Old 05-10-2004, 10:35 PM
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4 wheel drum brakes.

i have a 66 el camino with 4 wheel drums, i have added a power booster, does anybody have/had this setup? i was wondering how well it is going to stop. i have some people that i know that i think are trying to scare me saying its going to be hard to stop, but then others tell me its no big deal. i haven't bought a master cylinder yet, origionally it has a single bowl style, what should i get? eventually i plan on converting the front to disc but im going to drive the car the way it is for a bit.

thanks

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Old 05-10-2004, 10:50 PM
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Just make sure the parking brake will stop the car while moving, and you will be ok.

On my Willys it has 4 wheel drum brakes that are cable operated!
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Old 05-10-2004, 11:17 PM
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what would having the parking brake being able to stop the car while moving have to do with anything? its the front brakes i am most concerned about.
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Old 05-10-2004, 11:28 PM
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Make sure everything is in good working order and you'll be just fine. Not that long ago everything had drum brakes on all four and we stopped all the time. Find a GM power booster and dual master cylinder from a drum brake El Camino or pick up and hook up the lines exactly as they are on the donor vehicle. Disks are great don't get me wrong. But for everyday driving you won't really know the difference.
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Old 05-10-2004, 11:41 PM
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thanks very much. now do i need to make sure i get a master cylinder for 4 wheel drums? if i get one for front disc is there a proportioning type valve i can use to run the drums?


thanks
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Old 05-11-2004, 12:06 AM
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The proportioning valve is only for disk/drum applications. You could use the booster/mc set up from one of those set ups with a residual valve. I know Wilwood makes one for drum brakes, ( $17 Summit) for Street Rods with the booster/Mc mounted low on the frame, I think it will work for your application but I don't know for sure. This valve maintains a small amount of line pressure in the system at all times, when you depress the pedal the mc doesn't have to generate a lot of pressure for the brakes to work and everyone is happy. Otherwise the pedal would have to travel almost all the way to the floor for the brakes to work. Some others on this board know a lot more about this that me and I'm sure they will have more on this set up for you. If not contact Wilwood's web sites tech line. Good Luck
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Old 05-11-2004, 06:21 AM
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You do need a master cylinder that is for power drum brakes. The master cylinders piston diameter changes for disc/drum, drum/drum, power or not.

Vince
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Old 05-11-2004, 06:21 AM
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Put a good quality set of brake shoes on it and you will be OK. Drum brakes tend to fade more than discs, after a few stops, so be aware of that.

It's not a sports car, so don't drive it like one..................geesss...I am starting to sound like my old man did about 35 years ago...lol
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Old 05-11-2004, 07:23 AM
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thanks, so ill just get one for a power drum setup then. sports car... naaa, i just hope they have left me enough room at the end of the strip.
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1992 Dodge Shadow
1986 S-10 Blazer 4x4 Hot Rod
1970 Chevelle
1966 Chevelle 4 door
Home Made Go Cart
-----------------------------------------
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