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Old 05-27-2022, 12:38 PM   #3
68 P.O.S.
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Join Date: Jan 2007
Location: Puyallup, WA
Posts: 1,577
Re: Plug for 71-72 combination/proportioning valve

I've seen a bleeder screw and a brake line attached to that port. Not sure what the different applications would be (a ton, I'm sure). Mine doesn't have that port drilled, just an indent. Are you trying to rebuild it? I'd like to know how to remove the metering valve.
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72 C10 lwb fleetside -stock 350/350 combo

Last edited by 68 P.O.S.; 05-27-2022 at 12:43 PM.
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