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Old 12-29-2011, 12:43 PM   #1
Wscott9689
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disc brake prop valve?

i've got a 68 c10 that is bagged and im about to put drop spindles/disc brakes on it. i've been looking at the POL kits and others like it. i will need a disc/drum prop valve, right? if so any ideas on which one and what else ill need since im gonna be ordering soon? thanks in advance
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Old 12-29-2011, 01:06 PM   #2
lolife99
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Re: disc brake prop valve?

You will need a disc/drum prop valve and a disc brake master cylinder.
(with or without booster)

http://www.performanceonline.com/GM-...e-Brass-17010/

http://www.performanceonline.com/GM-...r-Brass-18770/

http://www.performanceonline.com/196...TER-KIT-16667/

http://www.performanceonline.com/Dis...lve-Kit-18817/

http://www.performanceonline.com/Dis...h-Performance/
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Convert to disc brakes.
http://67-72chevytrucks.com/vboard/s...d.php?t=444823
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Old 12-29-2011, 02:09 PM   #3
hairlesshobo
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Re: disc brake prop valve?

For proportioning valve, you might also want to check out the adjustable one that Rob sells over at No Limit. I don't have any experience yet but it is on my shopping list in a few weeks to replace the one that has failed on my truck. I currently have front disc, rear drum but I want the freedom to switch to rear disc in the future without having to purchase yet another valve. Might be something to think about just in case you ever go to disc/disc instead of disc/drum.

http://www.nolimitparts.com/prodinfo.asp?number=WB-100

Steve
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The Tranny (wrecked ): '86 Trans Am, SBC 350 (now in above truck), Borg-Warner T-5, 2" true dual, Thrush mufflers, 2.73:1 gears
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Old 12-29-2011, 03:24 PM   #4
Wscott9689
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Re: disc brake prop valve?

Thanks for the replies. I wasn't aware I was going to need a new master cyl also. Is this a must? If so whats the difference in my original master/booster and a disc one?
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Old 12-29-2011, 05:31 PM   #5
oldblue1968chevy
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Re: disc brake prop valve?

I converted to PB from parts from a 72 GMC (still running drums).

A year later I swapped the front end stuff form the 72 gmc (MC and prop valve).

I ended up getting a brass prop valve from speedway motors (came with bracket and MC lines). Cheapest I found on the net.
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Goose-1968 C10 355,9.32-1CR, Vortec Heads ,262 voodoo, 3.73:1 3OTT (HS ride/beater/farm truck)
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Old 12-30-2011, 11:05 PM   #6
Scottshotrods
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Re: disc brake prop valve?

We sell wilwood adjustable pro valves and we have several in stock and we have GREAT
forum deal $42.00 each

We have cpp firewall mount master booster set ups in stock and we have them at a great price and these have the prop valve in the master booster combo.

If you are interested let us know you can p/m us or call or e-mail at
justin@scottshotrods.com
scotts@scottshotrods.com
805 485-0382
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Old 12-30-2011, 11:48 PM   #7
hairlesshobo
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Re: disc brake prop valve?

Quote:
Originally Posted by Scottshotrods View Post
We sell wilwood adjustable pro valves and we have several in stock and we have GREAT
forum deal $42.00 each

We have cpp firewall mount master booster set ups in stock and we have them at a great price and these have the prop valve in the master booster combo.

If you are interested let us know you can p/m us or call or e-mail at
justin@scottshotrods.com
scotts@scottshotrods.com
805 485-0382
Would one of these work for a factory disc/drum setup? My proportioning valve is bad and it needs to be replaced. as stated above, I was hoping to get an adjustable one that would work with either disc/drum and also be usable when I convert my rear to disc in the future. Would this work or is there something I'm not getting about how an adjustable proportioning valve works?
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Shawty: '84 C10 Silverado SWB, 700r4, SBC 350 - 4 bolt main, bored 60 over w/ Weiand aluminum intake and moderate cam, 2" true dual exhaust, Thrush mufflers, 3.42:1 gears -- Build Thread
The Tranny (wrecked ): '86 Trans Am, SBC 350 (now in above truck), Borg-Warner T-5, 2" true dual, Thrush mufflers, 2.73:1 gears
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Old 12-31-2011, 02:42 PM   #8
Scottshotrods
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Re: disc brake prop valve?

Quote:
Originally Posted by hairlesshobo View Post
Would one of these work for a factory disc/drum setup? My proportioning valve is bad and it needs to be replaced. as stated above, I was hoping to get an adjustable one that would work with either disc/drum and also be usable when I convert my rear to disc in the future. Would this work or is there something I'm not getting about how an adjustable proportioning valve works?
Yes it will work for you

Justin
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Old 12-31-2011, 08:48 PM   #9
hairlesshobo
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Re: disc brake prop valve?

Quote:
Originally Posted by Scottshotrods View Post
Yes it will work for you

Justin
Cool, thanks!
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Shawty: '84 C10 Silverado SWB, 700r4, SBC 350 - 4 bolt main, bored 60 over w/ Weiand aluminum intake and moderate cam, 2" true dual exhaust, Thrush mufflers, 3.42:1 gears -- Build Thread
The Tranny (wrecked ): '86 Trans Am, SBC 350 (now in above truck), Borg-Warner T-5, 2" true dual, Thrush mufflers, 2.73:1 gears
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Old 01-20-2012, 09:45 PM   #10
hairlesshobo
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Re: disc brake prop valve?

I just ordered my valve from Justin. Once I get it installed I will let you know how it works out.
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Shawty: '84 C10 Silverado SWB, 700r4, SBC 350 - 4 bolt main, bored 60 over w/ Weiand aluminum intake and moderate cam, 2" true dual exhaust, Thrush mufflers, 3.42:1 gears -- Build Thread
The Tranny (wrecked ): '86 Trans Am, SBC 350 (now in above truck), Borg-Warner T-5, 2" true dual, Thrush mufflers, 2.73:1 gears
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