Front Disc Brake - Master Cylinder Question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

tcb-1 · 01-23-2008, 10:01 PM

I'm getting ready to do a front disc brake/lowering spindle conversion on my '69 C-10 1/2 ton. the kit I am buying from GMCPaul's does not contain a master cylinder/proportioning valve. Keep in mind, I'm not going to use a power booster.

1. I will be replacing the original drum/drum master cylinder anyway, so I'm wondering will I need to replace with a 71-72 disc/drum brake master cylinder?

2. I suppose I won't be using the original proportioning valve since it's a drum/drum, correct.

3. OR, can I go back with original drum/drum master cylinder and install an adjustable inline proportioning valve and tweak accordingly??

Thanks for you help guys!!

01-23-2008, 10:01 PM	#1
tcb-1 Nothing to see here..... Join Date: Jun 2007 Location: Shawnee, KS Posts: 4,625	Front Disc Brake - Master Cylinder Question I'm getting ready to do a front disc brake/lowering spindle conversion on my '69 C-10 1/2 ton. the kit I am buying from GMCPaul's does not contain a master cylinder/proportioning valve. Keep in mind, I'm not going to use a power booster. 1. I will be replacing the original drum/drum master cylinder anyway, so I'm wondering will I need to replace with a 71-72 disc/drum brake master cylinder? 2. I suppose I won't be using the original proportioning valve since it's a drum/drum, correct. 3. OR, can I go back with original drum/drum master cylinder and install an adjustable inline proportioning valve and tweak accordingly?? Thanks for you help guys!! __________________ Doug THANK YOU to our American Soldiers & Veterans - POW MIA "You will NEVER be forgotten". The democracy will cease to exist when you take away from those who are willing to work and give to those who would not. Thomas Jefferson



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