need thoughts on running brake line

[iceracer60]

alrite so heres the deal. im in the process of rebuilding a ranger with a 302, and now im to the point where i gotta start running my brake line. what i was thinking was that i could just run the rears right off the master to the axle and put a dist. block there and run to wheels and for the fronts the same. i have a dual port master so i dont see any problems. i was wondering if im going to have to run a proportioning valve or not. when i got the truck most of the lines were non existant. let me know what you think thanks.

 

[Roadkill]

You need a proportioning valve in order to limit brake force on the rear wheels or else you will be always locking up the rear tires and having the back end breaking free.

 

[iceracer60]

thats what i thought, thanks roadkill. ill get one coming from jegs then

 

[AllanD]

No, you do not need a "proportioning valve"

I defy you to locate one on my 1987 Ranger...

It never had one.

The line for the fronts originally ran to a "T" on the frame which divided the line to the two front brake hoses.

The line for the rear ran directly from the master to to the single hose to the rear axle.

Since that original setup I've replace my single piston calipers
with 1995-97 dual piston calipers, Eliminated that T-block
(on 89-up Rangers the upper end of the drivers side hose IS the "T-block")

AND I've replaced the original 9" rear brakes with the 10" drum brakes.

"Proportioning" is actually created by the inter-relationship between the
master cylinder bore diameter, the caliper bore AREA (total are of one or
more pistons) and the rear brake piston bore diameter.

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[iceracer60]

allen, if i remember correctly the 85 and the 87's share the same master, i crossed the aftermarket numbers at work and they came up the same, but our system sucks lol.

 

[AllanD]

I'm personally running a master from a 1992
because it has a bigger bore.

I did that knowing it would increase pedal effort because if there's
one thing I really hate it's a "long" pedal.

As I've said to others, a proper brake pedal is like the perfect
woman's breasts, high and firm.

On my truck I had the advantage of a basically stripped frame while I was running my brake lines and I replaced all the hard
lines (except the ones on the rear axle itself) with stainless steel
hard line.

KNOWING my rigid lines are not going to fail from rusting through
(like the originals and two sets of replacements did)
is also confidence building.

AD