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Old 09-27-2008, 05:32 PM   #1
pimp2303
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Default Manual Brakes To Power Brakes Conversion

i just got some granada disc brakes and while i have everything apart i want to change over to power brakes.


what all do i have to do. do i just need the power brake booster/master cylinder and a new distribution block or is it more to it. if there a write up, can someone give me teh link. thanks
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Old 09-27-2008, 05:51 PM   #2
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Make sure you have a good proportioning valve. Remember, the fronts should lock up before the rears.That is if you still have rear drums. Make a few braking passes and keep adjusting the valve to get the correct setup. Good Luck!
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Old 09-27-2008, 07:18 PM   #3
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For my 72 Mach I bought the following:

Complete 72 Ford spindles with all of the items, calipers/splash shields/rotors $250 (ebay)

They were original so I bought new slotted/drilled rotors, pads (ebay) and new calipers and painted them red. ~$200 (local auto store)

The bearings were still good so no cost

Used original proportioning valve for a power booster car $30 (ebay)

New flexible brake line $45 (caliper to hard lines) (NAPA)

New power booster with Master cylinder (rockauto.com) ~$120

Used power brake pedal and bracket $30 (ebay)

Power brake foot pedal cover ~$10 (NPD)

The hard brake lines needed to be bent and cut so I bought a flair tool and re used the fittings as needed.

The firewall hole had to be enlarged as the power booster assembly sat a little lower and its bolted from inside the car vs. the engine bay so you might have to drill out the holes or as in my case the new mounting bracket for the brake pedal was set up for it already

I cant think if any thing else, overall it was easy to do once I received the correct parts.
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Last edited by 71stang99; 09-27-2008 at 07:21 PM.
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Old 09-27-2008, 08:41 PM   #4
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I purchase on from fleebay. works just fine, no new peddle needed. you will need a new distro block though. That was my first mistake, but i will correct it soon.
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Old 09-27-2008, 09:49 PM   #5
pimp2303
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so basically i need the power brake booster itself, the power brake pedal (will it fit into my old bracket or do i have to get a new one (i dont mind drilling new holes) and proportion valve (4-way)

since i am putting disc brakes. do i have to find a power brake pedal for disc brakes or it wont matter long as it's power.

i found this power brake pedal on ebay for $75.
http://cgi.ebay.com/ebaymotors/1967-...mZ140263249106
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67 Dodge Coronet R/T (440/727)
70 Mustang Vert (302 converted 390FE/AOD)
70 Dodge Challenger R/T (440/727)
70 Plymouth Cuda (440/727)
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Last edited by pimp2303; 09-27-2008 at 09:56 PM.
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Old 10-13-2008, 12:16 AM   #6
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tomorrow i am buying an adjustable proportioning valve. do i put it in the line for the front brakes or for the back brakes.
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67 Dodge Coronet R/T (440/727)
70 Mustang Vert (302 converted 390FE/AOD)
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70 Plymouth Cuda (440/727)
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Old 10-13-2008, 07:41 AM   #7
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Rear brakes. Basically, it works by reducing the braking pressure to the rear. You dial it in to make the rears lock up just after the fronts.
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Old 10-13-2008, 09:07 AM   #8
kalli
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Quote:
Originally Posted by fakesnakes View Post
Rear brakes. Basically, it works by reducing the braking pressure to the rear. You dial it in to make the rears lock up just after the fronts.
easiest way to test this is a wet car park with lots of room (careful!)
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Old 10-13-2008, 09:07 AM
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