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11-25-2010, 10:39 PM
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#1 |
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Registered User
Join Date: Nov 2003
Location: Texas
Posts: 183
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70 Chevy 1/2 ton 4 z4
Decided to change my 70 chevy over to front disk
used disk off a 74 got new master cylinder and booster for a 72 new from parts store Now the back brakes lock up when you barely touch the pedal changed master cyinder didnt help Gene Sharp 
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11-25-2010, 11:02 PM
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#2 |
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Senior Member
 
Join Date: Feb 2001
Location: New Madison, Ohio
Posts: 21,377
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Re: 70 Chevy 1/2 ton 4 z4
You might get better assistance in this area. Good luck.
__________________
A husband can be right...or...A husband can be happy.  67-72 Chevy and GMC Trucks...The Classic Truck for the Classic Folk.  1970 CST Two tone green, 402BB, 400 Automatic, Tach, Buckets, AC, AM-FM, Tilt, GM CB, GM 8 Tract, LWB, etc   JOHN 17:3...The better side of "LIFE" Remember: Everyday is a good day...Some are just gooder! |
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11-25-2010, 11:40 PM
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#3 |
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Registered User
Join Date: Sep 2010
Location: British Columbia
Posts: 484
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Re: 70 Chevy 1/2 ton 4 z4
Perhaps a bad proportioning valve? If all the force is heading straight to the rear and not being dampened.
__________________
Trevor "You already said spite" |
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11-25-2010, 11:47 PM
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#4 |
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Registered User
Join Date: May 2010
Location: LOS BANOS
Posts: 46
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Re: 70 Chevy 1/2 ton 4 z4
did u change the prop valve
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11-26-2010, 08:47 AM
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#5 | |
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67-72 parts collector,…
 
Join Date: Nov 2002
Location: Mid-MO
Posts: 22,717
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Re: 70 Chevy 1/2 ton 4 z4
Quote:
You have to swap out the drum brake "distribution block" for a disc brake proportioning valve.
__________________
Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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