Technical what vehicles came with a stock drum drum combination brake valve - for booster

do I take it for granted they have built in 10 ilb residual valves each end
is there anything to them being power assisted from a booster or not.
thanks

 

Only if the booster is lower then the wheel cyls..

 

ahh so i need a 68-72 ish ford brake master cylinder
1'' with factory brake residual valves in it
that physically fits a booster, doesn't have the push rod
and buy a metering block, that isn't a disc/drum combination valve - i.e. it is sans the residual vlave
someting about swing pedals and pedal ratio - firwal mount v underfloor longer pedal ratio's
something about self energizing v stock 40 style non energizing
and not seeing a metering valve on pre 66 vehicles as they don't have them as they are all single circuit.
dic/drum mc's physically cannnot have 10 ilb valves in them as the fronts would lock,
hense the invention of the combo valve - metering line pressure front to rear, PLUS rear residual valve

so to round up, the window of manufacture of vehicles sporting drum brakes and a servo/booster is limited
IF
a 66 bronco is front drums single circuit non booster
a 67 f100 is front drum dual cuircuit unboosted
a 68 - 72 is front drums boosted
a 73 is disc front

so what does a 68-72 ford metering block look like?

great 76 mopar w200 truck flat bendix booster
mopar 4 40lt brak master with drum valves
mopar metering block

 

https://www.fordification.com/partnos/2B527PDV.htm

 

Chrysler A bodies ( 70 Dart ) with 4 wheel drums had a nice distribution block. Something to keep in mind is line sizes could come into play when you start plumbing things up.

 

Complex modern metering valves came about around 1972 depending on the make. I used to use a simple brass block on older dual master swaps and the cars stopped fine. In my car I have a distribution block from Summit, they run about $70 or so.

 

We had a 66 Buick Rivi with 4 wheel power drums.

https://www.opgi.com/brake-systems/...power-drum-1963-66-buick-riviera-br02060.html

 

'67 Charger has dual reservoir master cylinder and power assisted 4 wheel drums. They also had a distribution block with the "unbalanced" switch in it that would turn on an idiot light if one or the circuits had a large pressure differential. At least the factory 383 powered ones did, I don't know if the 440 and Hemi cars did or not.