Wilwood Proportioning Valve

[redwards69]

My second proportioning valve from one of the vendors (brass one) is leaking, with less than 100 miles on it. A lot of folks have gone towards the adjustable Wilwood prop valve, but that requires moving brake lines around. I came across this one (https://www.summitracing.com/tx/parts/wil-260-11322/overview/) on Summit racing and it's made out of aluminum vs brass.

Anyone using this one and had good luck (i.e., no leaks)? I like the idea of this one since I wouldn't have to redo the brake lines.

 

[73azbronco]

Looks pretty much like the brass one just from wilwood? No idea.

 

[redwards69]

So I bought this and got it installed this week. While replacing one of these proportioning valves in the typical spot on the frame is difficult enough, this particular one is more challenging because it has one less front brake output port, and it's on the bottom. In other words, the top output port is not on this one, so reshaping the line to be positioned for the lower, downward facing port is difficult at best, but then trying to connect that line was not fun. At any rate, it's in. I have high hopes for this piece that it won't leak like the bronze ones. I'll update this thread in the future with how it's working.

 

[ntsqd]

Where was the old one leaking from?

 

[DirtDonk]

Curious too, just for the final bit of info. But if it's like so many others, it's leaking from the delay valve under that rubber boot in the front circuit.

Paul

 

[redwards69]

Update for the group on this...6 months and a couple hundred miles later and this piece is good! Highly recommend it.

 

[duffymahoney]

I might do this as well.

 

[stus70brc]

Just ordered one from Duff's for my 74 project! Hoping this doesn't leak like the other ones from the rubber boot up front!! Good info Tks for sharing!!

 

[redwards69]

Still not leaking!!! This was a great piece.

 

[DirtDonk]

Great to know. Thanks for keeping us up to date.

Paul

 

[SteveL]

I'm in the process of putting the wilwood proportioning valve on both broncos. I drill and tapped 2 mounting holes in the aluminum block between the hydroboost and the mc. Came out nice. Still gotta cut and plumb the rear line to it on the 66.

 

[chrlsful]

"...replacement for 1978 and newer General Motors vehicles equipped with front disc / rear drum brakes...."