Power brake conversion proportionate valve question

[Leinhit]

1960 Apache C10

I haven't been able to find this answer anywhere. I'm interested in getting the power brake conversion with booster installed in my truck.

However all of them that I see say they are for disc brakes out front and drums in the back, I still have all four drum brakes and will for a year or so until the next upgrade

Is there a harm in installing this conversion with the disc / drum proportionate valve? What do I need to do to make it work with my drum / drum setup? Knowing in the future I will get disc brakes on the front at some point?

*Has a side question I was interested in a hydro boost brake system however I do not have power steering so I don't understand where it would get the power steering pressure from? A standalone electric pump that runs like an electric fuel pump maybe?

Any direct links on what to purchase would be appreciated.

Thank you

[geezer#99]

You don’t need a prop valve.
You need a distribution block like in this link.


https://www.67-72chevytrucks.com/vbo...d.php?t=522033

[Leinhit]

Thanks for the link I understand a bit better now. So am I right in thinking I buy one of these online and just eliminate any proportioning valve that might come with it and go to the distribution block.?

Where is the distribution block normally located? I don't believe I ran across it while rebuilding the truck or I looked right past it

[geezer#99]

Your truck didn’t have one. Your master is a single pot type. It fed all the brakes.
Do you have a pic of your master on the firewall?

[Leinhit]

I don't have a master cylinder on the firewall at all but it was the old single pot.

I may be misunderstanding, I thought the new vacuum brake conversion had a proportionate valve attached to them on the side of the master cylinder already so I was asking if I just needed to take that off and run it to a distribution block. But I could be misunderstanding and it doesn't have a proportionate valve on it at all?

I could just get another manual break single pot for $75 off Amazon but seems like throwing money away if I want to go to the power brake upgrade anyways at some point, this is my project truck I have never driven it ever but I'm getting close..

[geezer#99]

Options!
Always options!
Sure you can just replace the prop valve with the distribution block and run new brake lines.
Or just put on a new master and have stock brakes and wait until you have enough mulla to do it all at once in a years time.

Now here’s a potential problem.
Your master bore size might be different for 4 wheel drums versus disc/drums. You might be chasing your tail trying to get the brakes to work.

I’d leave it stock until next year.

Is your master normally on the firewall or under the floorboard?
I can’t recall when they changed.

[Leinhit]

It's a single reservoir master cylinder on the fire wall.

Amazon has a new one for $75. I thought maybe just get that for now to get it moving.. Or use that money for the dual reservoir vacuum assist. Just wasnt ready to get disk brakes up front yet..

But it wouldn't be the only $75 on this project I back tracked on later..

[geezer#99]

Never a waste of money. You might need it.

What disc kit are you looking at?

[Leinhit]

I wasn't really looking at a disc kit just yet. Since that will be in the future and I also toyed with the ideal reading here about just swapping the front end for like an 87 Chevy and then I would get disc brakes with that.

As far as the vacuum power brake upgrade I wasn't looking any kit in particular jags and summit have one for around $190.

I would rather have hydroboost brakes but I don't have power steering and we're not planning to have it if I could figure a way to do it without power steering I would

[geezer#99]

Ya see, you haven’t made up your mind yet! That’s a good thing. Keep your options open.
Easier to spend 75 now. Get it moving and stopping.
Swapping the front end works. I used an 80 gmc for the front clip with the booster, rearend and the wiring in a 56 sbss.
Keep it simple now. Mod it later.

[Leinhit]

I like your thinking, keep modding it and improving it and you never drive it

All right I'll make a decision by today.. I built the engine, Chevy 350 and just got done installing a sniper 2 unit.

Have never driven it I'd like to get it moving sooner rather than later.. I'm getting anxious to see it move