brake distribution block

woodsnake · Nov 2, 2011

I'm parting out another cougar, with plans to use as much as I can for my 67 XR7. I have a complete 67 disc brake setup, other than the Ford distribution block. The car still has the block for the 4 drum brakes.
Is it critical to swap out the dist. block? What is the downside to changing everything else except the distribution block?

robbz28 · Nov 2, 2011

U must hate plumbing, lol.....converted my front drum to disc and drove it around for a bit without changing the distribution block, it worked, but it was a big noticable difference when i finally changed the block. That distribution block is also a proportioning valve.....pre-set for disc/drum application....if you would rather you can keep the distribution block and just plumb in a proportioning valve to the rear brakes...

RagHead · Nov 2, 2011

When I converted to front disc brakes on my 66 Mustang I keep the original distribution block and plumbed in a adjustable proportioning valve to the rear wheels, works great. If you go this route, don't forget to plug the port that went to the rear from the original distribution block.

rbohm · Nov 2, 2011

you can keep the drum brake distribution block, but do add an adjustable proportioning valve to the rear system so you can properly balance the brakes.

woodsnake · Nov 2, 2011

So it is that big of a deal....My 68 has already had a power drum conversion, and I am getting ready to put disc's on the front of that car as well. I guess I will cough up the cash for a disc/drum distribution block...

chockostang · Nov 3, 2011

The stock Drum Distribution Block works EXCELLENT with front Disc brakes as a couple members have stated.

On the 65 66 Plug the rear brake hole, on 67 68 69 70 so on, run all through the block as it has been done on the drum setup, put in a adjutable proportioning valve ANYWAY in the rear brake line after it leaves the block.

Remember this, the Proportioning valve has absolutely Nothing to do with front Disc Brake fluid delivery, Not a Thing!

The Distribution block is just that, it Distributes, directs the fluid. No Magic fluid runs on these.

The Factory Mid 67 through 69 Distribution block/Proportioning valve was nothing nore than a distribution block with a external Non Adjustable Proportioning valve, it did the very same function a installing a adjustable Proportioning valve with a Drum Brake Distribution block.

Dan @ Chockostang

woodsnake · Nov 14, 2011

I have acquired an SSBC adjustable brake valve:

SSBC:: A0707

Can these be mounted vertically, or do they have to remain parallel to the ground?

chockostang · Nov 14, 2011

woodsnake said:
I have acquired an SSBC adjustable brake valve:

SSBC:: A0707

Can these be mounted vertically, or do they have to remain parallel to the ground?

Mount in any fashion you desire.

Dan @ Chockostang

woodsnake · Nov 14, 2011

This is what I got from SSBC:

"The prop valve can be mounted in any position except above the plain of the master cylinder; keep in mind that you want to be able to bleed out the air easily and make adjustments to the brake bias without having to crawl under the car."

So I can just plumb this in behind my distribution block, and call it good. SWEET.

2+2GT · Nov 14, 2011

robbz28 said:
That distribution block is also a proportioning valve.....pre-set for disc/drum application....if you would rather you can keep the distribution block and just plumb in a proportioning valve to the rear brakes...

No, the 67-69 used a separate proportioning valve. The unique 67 disc block is available new. The fittings on the drum block are not the same size as the disc.

robbz28 · Nov 14, 2011

My kit came with one of those adjustable proportioning valves to plumb to the rear brakes, but I didnt like it, so I used a GM valve that most kits include with them, only had to have one adapter to the rear brakes.

bnws · Nov 15, 2011

just aquired a pair of 68 disc brake spindles that i'm planing on installing in my 65 coupe. car currently has power drums. looking through mustang parts catalouges seems no one offers a single bowl m/s for a power brake setup. want to keep the booster. could any recomend a m/s to use or a m/s / booster retro-fit. also i asume that the residual vave is in the m/s is this correct

horseballz · Nov 15, 2011

bnws,
While those 68 spindles will physically bolt on, the steering arms are the wrong geometry for the a 65-66 (68 the same as actual Granada spindles) and will contribute to bump steer and other issues. There are "band aid" type cures for this, such as bump steer kits, etc, but using the right parts in the first place is much more preferable. I'm not sure if the difference is the length or the angle of the arms, but I do know they are different and not happily compatible. Your best/safest choice is to go to some CSRP (or other reputable) parts:

index

Brakes and steering are the absolute LAST places that you should cut corners and pinch pennies on! Do it right the first time, or you will likely end up spending way more by the time you're done doing again.

Just My $.02,
Gene

woodsnake · Dec 9, 2011

My solution to my problem of not having a PDB distribution block was this.
There is a local "u-pull-it" that still has lots of 60's-70's cars. I found a 72 mustang with PDB, and got that distribution block for 37.10. Plus a rebuild kit from West Coast Classic Cougar, for 58 bucks. So I will now have properly balanced brakes, for less than half what the "correct for 68" cigar valved proportioning valve cost.
http://www.cougarpartscatalog.com/hts7072discbrakes.html

2+2GT · Dec 10, 2011

robbz28 said:
My kit came with one of those adjustable proportioning valves to plumb to the rear brakes, but I didnt like it, so I used a GM valve that most kits include with them, only had to have one adapter to the rear brakes.

I'd rather use the Ford design, which also available.

woodsnake · Dec 10, 2011

That is like the ones I pulled from the yard. Although, for 105 bucks for a new one, that might be the way to go.

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