POWER DRUMS
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Freshman User
Joined: May 2012
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POWER DRUMS
Hey gang, I have a 66 f100 that I just dropped a nice 302 into and it runs like a raped ape. I have a single old school master cylinder and was wondering if I put a power booster , vac line and a duel master cyl and proportioning valve on it,,,,, will I have power brakes? did I miss anything? it that rod that goes to the pedal to the master a different length from the old non power single? this thing is hard to stop and I am a poor boy just wanting a cool safe truck. Please dont give me a link to summit or brembo with a $2000 disc upgrade kit, I am old school and like the junkyard donar trucks.Isnt that what it is all about? Thats what our Dads would have done right? Sorry if I offended anyone.............Now how about some advice Rodders!!!!
Fleet Mechanic
Joined: Oct 2007
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I added power to my 4 wheel drums by adding the booster, firewall mounting brackets, installing a vacume hose from the manifold to the booster, and extending the wiring for the brake light switch.
Thats all you need to add power to your current system.
In the future Im adding discs off my 75 donor truck, all I will need to do is swap out the single m/c for a dual and swap over the brake lines and porportioning valve.
Thats all you need to add power to your current system.
In the future Im adding discs off my 75 donor truck, all I will need to do is swap out the single m/c for a dual and swap over the brake lines and porportioning valve.
Posting Guru
Joined: Mar 2006
Posts: 1,182
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you don't need to add a proportioning valve if you're sticking with 4-wheel drums.
otherwise, you're on the money.
when you buy the new dual-reservoir MC, make sure you get one designed for 4-wheel power drums. if you have trouble fiding one, try asking for one for a '69 Mustang- that car had a lot of brake configurations available.
otherwise, you're on the money.
when you buy the new dual-reservoir MC, make sure you get one designed for 4-wheel power drums. if you have trouble fiding one, try asking for one for a '69 Mustang- that car had a lot of brake configurations available.
Posting Guru
Joined: Mar 2006
Posts: 1,182
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hold up a second-
i missed the part where you said you're adding discs in the future.
that complicates things-
a disc/drum MC is not the same as a drum/drum.
if you're sticking with drums *for now*, you'll need a drum/drum MC. otherwise you're going to run into trouble (the disc/drum MC will not have a residual valve for the front brakes).
good info here:
Master Power Brakes - Reference/FAQs: Master Cylinders
i missed the part where you said you're adding discs in the future.
that complicates things-
a disc/drum MC is not the same as a drum/drum.
if you're sticking with drums *for now*, you'll need a drum/drum MC. otherwise you're going to run into trouble (the disc/drum MC will not have a residual valve for the front brakes).
good info here:
Master Power Brakes - Reference/FAQs: Master Cylinders
Fleet Mechanic
Joined: Oct 2007
Posts: 1,986
Likes: 108
Rusty, you are over thinking this.
The OP asked what he needed to do to make his manual brakes power brakes. I answered him.
In my case I rebuilt my drum brakes and added a booster. My m/c and brake hardware was shot, so I had no brakes.
In the future Im pulling the discs off my 75 parts truck and installing them on my 66. I am reusing my booster and rear drums, otherwise Im replacing everything.
No complications here, Im just doing it in two steps instead of one step.
The OP asked what he needed to do to make his manual brakes power brakes. I answered him.
In my case I rebuilt my drum brakes and added a booster. My m/c and brake hardware was shot, so I had no brakes.
In the future Im pulling the discs off my 75 parts truck and installing them on my 66. I am reusing my booster and rear drums, otherwise Im replacing everything.
No complications here, Im just doing it in two steps instead of one step.
Posting Guru
Joined: Mar 2006
Posts: 1,182
Likes: 1
Argh- actually, I got you mixed up with the OP, so i thought he was saying that the plan was to put discs on in the future.
my mistake- apparently i'm in need of a day off...
so- i'll stick with what i said about not needing to add a proportioning valve, but just forget everything else i said.
my mistake- apparently i'm in need of a day off...
so- i'll stick with what i said about not needing to add a proportioning valve, but just forget everything else i said.
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