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07-24-2012, 06:24 PM
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#1 |
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Registered User
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
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Why are proportioning valves so expensive?
I was sand-blasting my disc-drum proportioning valve when, to my shock and dismay, I reazlied I hadn't plugged one opening. Figuring I now have abrasive in it, I need to rebuild or replace it.
The problem is that I can't find anyone who rebuilds them and the replacements are close to $200. Presuming I want to stay stock appearing (no billet aftermarket units for me) and don't want to spend $200 on a valve, do I have any options? Or am I hooped? I could throw a used one in if I could find one, but it's sort of dodgy to skimp on a safety item in an otherwise complete restoration...
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1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible |
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07-24-2012, 06:39 PM
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#2 |
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Registered User
Join Date: Jul 2011
Location: El Campo, Tx
Posts: 1,246
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Re: Why are proportioning valves so expensive?
Speedway actually makes a kicka$$ one for only about 70 bucks. I have one for my truck. It comes with stainless fittings too. Has a built in adjuster if you have discs in the back. And it is billet but mounts on stock mounts. Has the brake light switch built in also.
http://www.speedwaymotors.com/Adjust...itch,6160.html P.S I just reread and realized that you wanted a factory appearing one. Sorry I don't know about that
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72 Chevy blue LWB, 99% original Oklahoma truck, 28,000 miles 72 Chevy SWB: http://67-72chevytrucks.com/vboard/s...d.php?t=486626 (Attempt/Mistake #2) 2003 Harley Davidson Dyna Superglide with 2007 Street Bob front end 2000 Ford F350 Powerstroke 4WD CCLB, 310,000 miles running great (STOLEN St. Patricks Day 2014 AND NEVER RECOVERED) 2002 Ford F250 Powerstroke 4WD CCLB (To replace stolen one) Hook em Horns!!! |
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07-25-2012, 09:09 AM
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#3 |
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Registered User
Join Date: Apr 2011
Location: Mustang, Oklahoma
Posts: 2,806
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Re: Why are proportioning valves so expensive?
If you are using original drums all the way around I beleive it is a "distribution block". Here is a nice (cast not billet) repro from inline tube for a nice price $85 ! I would give you mine from a 1967 if you want it.
http://inlinetube.com/Prop%20Valves/PR-112.htm
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Dan <---(my name) 67 SWB C10 project "GEORGIA"-59 Brookwood 2dr wag...Next project-03 Tahoe 4x4 5.3 family ride-07 Hondur Accord, commuter car |
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07-25-2012, 09:13 AM
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#4 |
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Registered User
Join Date: Apr 2011
Location: Mustang, Oklahoma
Posts: 2,806
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Re: Why are proportioning valves so expensive?
Here is the 71-77 Disc/drum prop valve as well. it is brass though. Also $85.
http://inlinetube.com/Prop%20Valves/PR102.htm Looking through their catalog for chevy trucks I found several part numbers so you may want ot call and verify the correct one before ordering if you go with inlinetube.
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Dan <---(my name) 67 SWB C10 project "GEORGIA"-59 Brookwood 2dr wag...Next project-03 Tahoe 4x4 5.3 family ride-07 Hondur Accord, commuter car Last edited by 67c10rustbuket; 07-25-2012 at 09:22 AM. Reason: add info |
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07-25-2012, 12:36 PM
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#5 |
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Registered User
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
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Re: Why are proportioning valves so expensive?
Mine is disc-drum, and its a cast unit.
__________________
1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible |
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07-25-2012, 01:14 PM
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#6 |
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Registered User
Join Date: Jan 2011
Location: Austin, TX
Posts: 632
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Re: Why are proportioning valves so expensive?
I have one for sale in the FS section. It's older but "brand new" it was mounted and then I went with Hydroboost. Never had fluid in it, I (taped up the ports) and sandblasted it recently so it would be ready to coat and install.
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www.tomthetruck.blogspot.com <-- Aka build thread. |
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07-25-2012, 01:49 PM
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#7 |
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Registered User
Join Date: Aug 2010
Location: Edwards, CA
Posts: 7,503
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Re: Why are proportioning valves so expensive?
Dave, Tried to dig up some helpful info to no end, just gloom and doom. However I'd try White Post Restorations and see what they can do or advise you to do to save yours.
http://www.whitepost.com/brake.html
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Thanks, Tim * VIN/Model Decoders * Power Team Charts (engine/transmission/gear ratio) * Post Your Pickup SPID ** Blazer SPID ** Suburban/Panel SPID * RTFM ... Read The Factory Manuals... download 'em here Highlanders ** Do you have a 1972 Plaid Pickup? ** Plaid Blazer ** Plaid Suburban |
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07-26-2012, 07:00 AM
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#8 |
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Special Order
  
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,861
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Re: Why are proportioning valves so expensive?
So,the cost for the proportioning valve seems disproportionate? How odd? Sorry
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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07-26-2012, 09:34 AM
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#9 |
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Registered User
Join Date: Nov 2010
Location: Carlsbad, CA
Posts: 1,584
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Re: Why are proportioning valves so expensive?
It wouldn't be so odd if the cost distribution were more even.
__________________
- Jim - My Daily Driver is a 1969 Chevrolet Custom/20 Fleetside 350/TH400/Eaton H052 4.10 and its Project thread is here http://67-72chevytrucks.com/vboard/s...d.php?t=456911 |
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