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- - disc brake master cylinder (https://67-72chevytrucks.com/vboard/showthread.php?t=256954)

goldengoat2

09-04-2007 09:35 PM

disc brake master cylinder

Finishing up a 4x4 disc brake conversion on my 67, can I use my non dics brake master cylinder, or do I need to change it. Thanks

CHRIS67GMC

09-04-2007 09:50 PM

Re: disc brake master cylinder

Change it.

Ackattack

09-04-2007 10:01 PM

Re: disc brake master cylinder

yeah, change it. Disc brakes require more fluid flow than drums.

Musclerodz

09-05-2007 11:47 AM

Re: disc brake master cylinder

Also need to change the prop valve to a disc/disc valve or install an adjustable one

Mike

Smitty

09-05-2007 06:51 PM

Re: disc brake master cylinder

The drum master holds more residual pressure than the disc unit does. Found out the hard way. Had a drum master on my '71 bled it out and couldn't turn the rotor because of the difference in the residual pressure.

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