will my booster work? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

manimal · 02-25-2011, 11:21 AM

I am going to be putting disc brakes on my '67 CST20 soon. They are coming from a '77 C20. My truck currently has power drums,can I just change the master cylinder and use my existing booster,or do I have to change the whole set up? Thanks
it's been quite a long time since I have messed with this era of trucks, I went over to the 73-up for a few years and have forgotten the tricks/tips for these.

*Fitz* · 02-25-2011, 12:51 PM

You can keep the booster and master cylinder. Just replace the proportioning valve.

manimal · 02-25-2011, 10:08 PM

I thought the disc MC had a different size bore?

oldblue1968chevy · 02-25-2011, 11:54 PM

You'll need a prop. valve and a disc drum MC

manimal · 02-26-2011, 12:51 AM

Cool THANKS!

02-25-2011, 11:21 AM	#1
manimal Registered User Join Date: Oct 2006 Location: Southern Kalifornia Posts: 3,066	will my booster work? I am going to be putting disc brakes on my '67 CST20 soon. They are coming from a '77 C20. My truck currently has power drums,can I just change the master cylinder and use my existing booster,or do I have to change the whole set up? Thanks it's been quite a long time since I have messed with this era of trucks, I went over to the 73-up for a few years and have forgotten the tricks/tips for these. __________________ ------------------------------------------------------ -Lance 2000 Chevy C2500, 5.7, 4L80e 1999 Suburban K2500, 7.4, 4L80e 1980 Camaro..son's car...PROJECT

02-25-2011, 12:51 PM	#2
Fitz Account Suspended Join Date: Jan 2007 Location: Tucson Posts: 2,183	Re: will my booster work? You can keep the booster and master cylinder. Just replace the proportioning valve.

02-25-2011, 10:08 PM	#3
manimal Registered User Join Date: Oct 2006 Location: Southern Kalifornia Posts: 3,066	Re: will my booster work? I thought the disc MC had a different size bore? __________________ ------------------------------------------------------ -Lance 2000 Chevy C2500, 5.7, 4L80e 1999 Suburban K2500, 7.4, 4L80e 1980 Camaro..son's car...PROJECT

02-25-2011, 11:54 PM	#4
oldblue1968chevy Grandpa in the rustmobile... Join Date: Nov 2008 Location: Spokane WA/Viola TN Posts: 11,422	Re: will my booster work? You'll need a prop. valve and a disc drum MC __________________ John Goose-1968 C10 355,9.32-1CR, Vortec Heads ,262 voodoo, 3.73:1 3OTT (HS ride/beater/farm truck) http://67-72chevytrucks.com/vboard/s...d.php?t=317684 Grams 53-1953 Chevrolet Belair http://67-72chevytrucks.com/vboard/s...=1#post4327784 1969 Chevy C10 Shortbed 4.5/6?" Frame off resto http://67-72chevytrucks.com/vboard/s...d.php?t=548136 1999 Toyota Tacoma 4x4

02-26-2011, 12:51 AM	#5
manimal Registered User Join Date: Oct 2006 Location: Southern Kalifornia Posts: 3,066	Re: will my booster work? Cool THANKS! __________________ ------------------------------------------------------ -Lance 2000 Chevy C2500, 5.7, 4L80e 1999 Suburban K2500, 7.4, 4L80e 1980 Camaro..son's car...PROJECT



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