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Old 04-16-2019, 10:57 AM   #1
UATahoe
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Brake line routing suggestions for Wilwood master/prop valve setup?

So i am about to start making all new brake lines for my 87 pickup. I have converted the rears to disc brakes and will be replacing the stock master cylinder with the wilwood master and wilwood prop valve. The prop valve mounts to the side of the master so i will be ditching the factory prop valve location all together. Just curious how you guys who are running this setup ran your lines. Any tips/suggestions or lessons learned? I tried finding somebody who had a pre-made line set that would work with the new master/prop valve setup but came up empty.
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Old 04-16-2019, 11:22 AM   #2
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Re: Brake line routing suggestions for Wilwood master/prop valve setup?

I have the prop valve mounted at the master cyl...its not wilwood but same concept...I used -3an stainless flex line from the pv down to the frame....there is a tee centered on the front crossmember that splits to each front wheel...the rear I ran across the front and down the pass side frame rail that turns into flex that goes to diff center and then to each rear wheel...I bought the pre flared 6ft lines from oreillys and cut to length and reflared the ends where needed...
Make sure your master and pv is for a disc/disc setup...
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Old 04-16-2019, 11:56 AM   #3
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Re: Brake line routing suggestions for Wilwood master/prop valve setup?

Thanks for the info mongo! I was initially going to use the flex line like you mentioned but a lot of feedback i got was that was allocating too much flex line to the system and the pedal would never be firm. Everyone said to use as much hard line as possible. I like your idea though. The only difference for me is that the Wilwood valve has 2 outputs for the front brakes and one output for the rear. But i think you can leave one of the fronts plugged and run a single line to a tee like you did. I am guessing the lines coming out from the tee are hard lines that run to the frame on both the passenger and drivers side? And then a braided stainless hose from each caliper back to that hard line at the frame?
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Old 04-16-2019, 03:00 PM   #4
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Re: Brake line routing suggestions for Wilwood master/prop valve setup?

My PV has the option for 2 front lines as well,or plug one ,use one...I plugged one...the flex line I used is 16in long,then turns to hard line going to the tee...then hard line to each caliper flex...I just used stock flex from hard line to front caliper...
I talked to several people before using the flex...I was assured it would be ok...alot of racers use the same setup....drag,roundtrak,rockcrawlers...some of those use all ss flex for brake lines...
Haven't driven it yet so time will tell....
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Old 04-17-2019, 10:18 AM   #5
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Re: Brake line routing suggestions for Wilwood master/prop valve setup?

Thanks for the feedback man. I may give this some thought. That would make things a lot easier for sure.
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Old 04-17-2019, 03:43 PM   #6
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Re: Brake line routing suggestions for Wilwood master/prop valve setup?

I like the -3AN line idea! I made mine the complicated way.


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Old 04-17-2019, 03:53 PM   #7
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Re: Brake line routing suggestions for Wilwood master/prop valve setup?

Mongocanfly, what's the reason for the "IH" on your prop valve? Is the displayed vehicle a scout?

Edit to add: I just thought to check your signature. Nice truck!
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Old 04-18-2019, 10:57 AM   #8
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Re: Brake line routing suggestions for Wilwood master/prop valve setup?

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I like the -3AN line idea! I made mine the complicated way.


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Old 04-18-2019, 12:35 PM   #9
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Re: Brake line routing suggestions for Wilwood master/prop valve setup?

Yep kipps...IH put their name on every piece of the trucks they built...I had some stickers so I thought..what the heck..why not..haha
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1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598
Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334
Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563
2023 Chevy Z71..daily driver
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Old 04-19-2019, 10:34 AM   #10
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Re: Brake line routing suggestions for Wilwood master/prop valve setup?

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Originally Posted by 1957 Chief View Post
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