4 wheel disc combination valve

[BobinHSV]

Both of them are pv4's as per the stamp but at least the one in the photo has the vent under it. I am learning aftermarkets suck. But I need to find a good replacement any help????

I> have tried to stay with GM OEM parts where possible, for example I have a complete 4 wheel disc brake setup from a 2003 S10 Blazer 2WD. Had an after market and was not satisfied with it. The Blazer set up works great.

 

[565bbchevy]

78-88 G-Body 4 Wheel Disc Brake Line Proportioning Valve Combo Non Adjustable | eBay

Find many great new & used options and get the best deals for 78-88 G-Body 4 Wheel Disc Brake Line Proportioning Valve Combo Non Adjustable at the best online prices at eBay! Free shipping for many products!

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[CM1SCW]

thank you all i will be looking into them. Here are some photos of the current one on the car. the drip seems to be from the rubber plug all fittings are dry. Even on top.

 

[565bbchevy]

thank you all i will be looking into them. Here are some photos of the current one on the car. the drip seems to be from the rubber plug all fittings are dry. Even on top.

So where did you get that one from?

 

[CM1SCW]

So where did you get that one from?

i believe speedway

 

[81cutlass]

Honestly I haven't seen any evidence of them coming from anything but the same factory.

The stock disk/disk prop valve was designed for 15" all season tires with stock suspension and weight split.

It might be invasive to redo any lines but it you are open to swapping to an adjustable one to dial in the bias depending on what your car wants.

"Wilwood Disc Brakes 260-11179 Wilwood Brake Proportioning Valves | Summit Racing" https://www.summitracing.com/parts/...s2YRgn_hI2doiBw7mEIjipkZCoEHnHRYaAlZMEALw_wcB

 

[Kiko]

I use the Wilwood Adjustable Proportioning Valve (#260-8419) on my Disk/Disk setup. No leaks so far. Make sure you tighten nice and snug. From experience, not tight enough was my problem when I started fitting brake lines.

 

[CM1SCW]

I use the Wilwood Adjustable Proportioning Valve (#260-8419) on my Disk/Disk setup. No leaks so far. Make sure you tighten nice and snug. From experience, not tight enough was my problem when I started fitting brake lines.

It was not the fittings leaking. they where all tight the failure is within the combination valve itself, leaking past the covered vent hole as seen in the photos. the black rubber circle to the rear. I am trying not to use adjustable do to all the replumbing it would involve.

 

[scoti]

It was not the fittings leaking. they where all tight the failure is within the combination valve itself, leaking past the covered vent hole as seen in the photos. the black rubber circle to the rear. I am trying not to use adjustable do to all the replumbing it would involve.

Not arguing your point but seems like plumbing in an adjustable one wouldn't be extremely difficult if you can't seem to get the OE style to work. Since the 'OE' units are all basically made via the aftermarket now, they are what they are. Some are going to be fine; some aren't.

Maybe try another from a different vendor (Inline Tubing)?

 

[melloelky]

when I plumbed mine I installed the disk/disk from inline and willwood insisted that their adjustable was also needed. I went back and fourth on the adjustment end and found no difference so it's been wide open.