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Old 09-04-2006, 07:32 AM   #1
llama
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proportioning valve lines

Just to make sure, does the line that goes out the back of the pro value go to the rear brakes? Been a few years since I took the truck apart. Any pics of the lines along the frame would be helpful.
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Old 09-04-2006, 11:14 AM   #2
68haywagon
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Re: proportioning valve lines

What year? Discs or 4 drums?

My 4 wheel drum is front to front and rear to rear.

Mike
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Old 09-04-2006, 03:21 PM   #3
rodstored-72
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Re: proportioning valve lines

i believe that you are correct. i have a cpp prop valve for 4 whl discs & the line for the rear brakes connects to the prop valve at the "rear" connection by the booster. now if i could only get it to not leak!
hope this helps.
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Old 09-04-2006, 06:05 PM   #4
Stocker
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Re: proportioning valve lines

On my stock '72 K20 (w/front discs).....

Front of MC to rear of prop. valve to rear brakes.

Rear of MC to front of prop. valve to front brakes.
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Old 09-07-2006, 06:13 AM   #5
llama
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Re: proportioning valve lines

hey stocker I was wonding if you could take a pic of that. thanks guys jeff
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Old 09-07-2006, 01:44 PM   #6
john
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Re: proportioning valve lines

Here is a pic of c-10 lines. 3/4 ton lines are as stocker describes.
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Old 09-07-2006, 07:02 PM   #7
llama
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Re: proportioning valve lines

thanks alot, I have the front and back of the MC mixed up.
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