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Old 03-24-2009, 10:51 AM   #4
Green Machine
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Join Date: Jul 2004
Location: Estherville, Iowa
Posts: 3,371
Re: Proportioning valve rebuild kit

Don't use mineral spirits, it will ruin the rubber parts. We took 2 old ones apart to try to get one to work for our 71. Not much luck. Best to buy a new one, I know they are expensive, but when you need to use the brakes, that is not the time to find out you saved $80. It's bad when they don't go, but it's worse when they don't stop.
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1968 C10 307 3spd Long Fleet ------ http://67-72chevytrucks.com/vboard/s...d.php?t=201103
1970 C10 305 Super T10 Long Fleet --- http://67-72chevytrucks.com/vboard/s...d.php?t=202285
1971 C20 383 TH350 Dana Posi ----- http://67-72chevytrucks.com/vboard/s...d.php?t=206894
2001 GMC Sierra 1500 C3 6.0
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