brake help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

prostreet1967 · 10-02-2008, 07:17 PM

i have four wheel disc on my truck i have a booster master cylinder and combination valve off of a mid 90s chevy truck. seems like rear brakes drag pedal is spongy bleed several times. i read on mp brakes site that disc/drum master cylinders have built in residual valves that will cause rear brakes to drag in disc disc situation.

i wanna go back to manual brakes so i need a master cylinder for manual brakes and 4 wheel disc. anyone know of something i can use from auto parts store. would rather not have to order one right now but if thats my only option what would be a good one.

thanks

djracer · 10-07-2008, 07:32 AM

compare a 99 to 2003 master cylinder. They have 4 wheel disc.

prostreet1967 · 10-07-2008, 07:42 PM

i found 76 corvette manual disc/disc brakes. will look into that though the one for the vette is only 30 bucks though

djracer · 10-07-2008, 10:03 PM

the vette one may come closer to a direct swap.

ratrod67 · 10-14-2008, 06:42 PM

I put a vette manual disc master on my old 72 with 4 wheel disc. It's now Outlaw72's truck. Orange and white.

prostreet1967 · 10-27-2008, 05:19 PM

do u have to run a combination valve when running 4 wheel disc ive seen alot of pics of cars and i don't see any. i see the adjustable proportiong valve is that the same thing

10-02-2008, 07:17 PM	#1
prostreet1967 Registered User Join Date: Oct 2006 Location: fort worth texas Posts: 395	brake help i have four wheel disc on my truck i have a booster master cylinder and combination valve off of a mid 90s chevy truck. seems like rear brakes drag pedal is spongy bleed several times. i read on mp brakes site that disc/drum master cylinders have built in residual valves that will cause rear brakes to drag in disc disc situation. i wanna go back to manual brakes so i need a master cylinder for manual brakes and 4 wheel disc. anyone know of something i can use from auto parts store. would rather not have to order one right now but if thats my only option what would be a good one. thanks

10-07-2008, 07:32 AM	#2
djracer Registered User Join Date: Feb 2001 Location: Wetumpka, Al, U.S. Posts: 8,891	Re: brake help compare a 99 to 2003 master cylinder. They have 4 wheel disc. __________________ Kevin Special Thanks to All who have helped on the TRUCK! My Pass Time Show http://s129.photobucket.com/albums/p...Chapter1-0.mp4 So Far my best Times are: Motor only: 6.44 1/8 @ 104.13 10.39 1/4 @ 125.83 Nitrous Times: 5.785 1/8 @ 118.65 with a 1.336 60ft 9.168 1/4 @ 142.58 with a 250 shot dead out of the hole!

10-07-2008, 07:42 PM	#3
prostreet1967 Registered User Join Date: Oct 2006 Location: fort worth texas Posts: 395	Re: brake help i found 76 corvette manual disc/disc brakes. will look into that though the one for the vette is only 30 bucks though

10-07-2008, 10:03 PM	#4
djracer Registered User Join Date: Feb 2001 Location: Wetumpka, Al, U.S. Posts: 8,891	Re: brake help the vette one may come closer to a direct swap. __________________ Kevin Special Thanks to All who have helped on the TRUCK! My Pass Time Show http://s129.photobucket.com/albums/p...Chapter1-0.mp4 So Far my best Times are: Motor only: 6.44 1/8 @ 104.13 10.39 1/4 @ 125.83 Nitrous Times: 5.785 1/8 @ 118.65 with a 1.336 60ft 9.168 1/4 @ 142.58 with a 250 shot dead out of the hole!

10-14-2008, 06:42 PM	#5
ratrod67 Registered User Join Date: Sep 2002 Location: DFW Texas Posts: 2,270	Re: brake help I put a vette manual disc master on my old 72 with 4 wheel disc. It's now Outlaw72's truck. Orange and white.

10-27-2008, 05:19 PM	#6
prostreet1967 Registered User Join Date: Oct 2006 Location: fort worth texas Posts: 395	Re: brake help do u have to run a combination valve when running 4 wheel disc ive seen alot of pics of cars and i don't see any. i see the adjustable proportiong valve is that the same thing



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