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Old 02-02-2013, 10:38 AM   #1
48gmc
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proportioning valve

have a 48 gmc 1/2 ton, master cylinder has 1 outlet, should i put a valve in there, and where to get it...
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Old 02-02-2013, 04:09 PM   #2
LONGHAIR
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Re: proportioning valve

You would be much better off converting to a more modern dual reservoir master cylinder. If you still need to cut back on some of the rear brakes so stop lock-up problems, there are adjustable proportioning valves to do that.
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Old 02-02-2013, 05:08 PM   #3
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Re: proportioning valve

if you have stock brake system in your truck it has functioned pretty darn good for goin on 65years why the heck change it ??? maybe u need to do a real good 4wheel brake job by the book (GMservice manual)to get them to work the way they were designed to work
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Old 02-03-2013, 12:52 AM   #4
andrewmp6
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Re: proportioning valve

A dual bowl is a lot more safer then a single bowl is the main reason to change it.With a single bowl when you lose brakes you lose them all which isn't pretty.
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Old 02-04-2013, 08:07 PM   #5
48gmc
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Smile Re: proportioning valve

just ordered a dual bowl mc, should get it next week...thanks for info...
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