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AusMarty · 11-27-2014, 09:39 PM

Can someone please tell me where i can get one of these or an aftermarket replacement, it's off my 67 with 4 wheel power drums and is it a residual pressure valve or just a distribution block ?

Many thanks

Andy4639 · 11-28-2014, 02:18 AM

AusMarty,
I not real sure about Australia but here in the good old USA its a roportioning valve. You can get them at any parts store. The connector on top is for the brake light on the dash.

**truckdude239** · 11-28-2014, 02:35 AM

I just replaced mine on my 71 had to order it off net no local stores had it. It is a portionaton vavle

cdowns · 11-28-2014, 08:38 AM

not a proportioning valve it is in fact just a distribution block

RichardJ · 11-28-2014, 04:54 PM

That's actually a combination valve, but part of it is missing.

The large nut on the left is part of the proportioning section of the valve. Yours is missing that part of the valve.
The rubber cap on the right is part of the metering valve or sometimes called a hold-off valve. The center section is a valve/switch for the brake failure warning light.

The reference I found for that Bendix valve is that it was sometimes used in 71-72 A-body GM cars (Chevelle) with drum/drum brakes.

Is it possible some of your Holden vehicles with drum/drum brakes use it?

I would think that the difference between that drum/drum combination valve and a disc/drum combination valve is simply less reduction in pressure to the rear brake.

I found this web site that lists a drum/drum specific combination valve. http://www.carolinaclassictrucks.com...portion-valves

Notice that they call it a proportioning valve at the top, but in the Item Description, they correctly call it a combination valve.

67 chevelle · 11-28-2014, 05:26 PM

Quote:

Originally Posted by RichardJ

That's actually a combination valve, but part of it is missing.

The large nut on the left is part of the proportioning section of the valve. Yours is missing that part of the valve.
The rubber cap on the right is part of the metering valve or sometimes called a hold-off valve. The center section is a valve/switch for the brake failure warning light.

The reference I found for that Bendix valve is that it was sometimes used in 71-72 A-body GM cars (Chevelle) with drum/drum brakes.

Is it possible some of your Holden vehicles with drum/drum brakes use it?

I would think that the difference between that drum/drum combination valve and a disc/drum combination valve is simply less reduction in pressure to the rear brake.

I found this web site that lists a drum/drum specific combination valve. http://www.carolinaclassictrucks.com...portion-valves

Notice that they call it a proportioning valve at the top, but in the Item Description, they correctly call it a combination valve.

my guess also , especially if a wire was connected on top

mgchevyparts · 11-28-2014, 05:57 PM

Quote:

Originally Posted by cdowns

not a proportioning valve it is in fact just a distribution block

Correct with a low pressure warning switch.
4 wheel drum vehicles do not use proportioning valves, although they do look almost the same.

11-27-2014, 09:39 PM	#1
AusMarty Registered User Join Date: Jan 2005 Location: Australia Posts: 215	Brake experts Can someone please tell me where i can get one of these or an aftermarket replacement, it's off my 67 with 4 wheel power drums and is it a residual pressure valve or just a distribution block ? Many thanks Attached Images

11-28-2014, 02:18 AM	#2
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,936	Re: Brake experts AusMarty, I not real sure about Australia but here in the good old USA its a roportioning valve. You can get them at any parts store. The connector on top is for the brake light on the dash. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

11-28-2014, 02:35 AM	#3
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,230	Re: Brake experts I just replaced mine on my 71 had to order it off net no local stores had it. It is a portionaton vavle __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube

11-28-2014, 08:38 AM	#4
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Brake experts not a proportioning valve it is in fact just a distribution block __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

11-28-2014, 04:54 PM	#5
RichardJ Registered User Join Date: Apr 2010 Location: So Cal Posts: 1,420	Re: Brake experts That's actually a combination valve, but part of it is missing. The large nut on the left is part of the proportioning section of the valve. Yours is missing that part of the valve. The rubber cap on the right is part of the metering valve or sometimes called a hold-off valve. The center section is a valve/switch for the brake failure warning light. The reference I found for that Bendix valve is that it was sometimes used in 71-72 A-body GM cars (Chevelle) with drum/drum brakes. Is it possible some of your Holden vehicles with drum/drum brakes use it? I would think that the difference between that drum/drum combination valve and a disc/drum combination valve is simply less reduction in pressure to the rear brake. I found this web site that lists a drum/drum specific combination valve. http://www.carolinaclassictrucks.com...portion-valves Notice that they call it a proportioning valve at the top, but in the Item Description, they correctly call it a combination valve. __________________ '67 GMC 2500, 292, 4spd, AC Last edited by RichardJ; 11-28-2014 at 04:59 PM.



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