new member long time ford fan

proud owner of 79 bronco xlt all original 400 auto i keep my bronco in the garage other cars stay outside in the weather been working on brakes and getting no fluid to rear brake line at proportioning/differential valve pulled unit off frame cannot blow air thru 2 back ports has it gone bad if so found one at horsepower sales llc proportioning/combination brake valve #hpv2f $69.95 solid brass looks right but see no pin in photo to seperate front to bleed brakes anyone have aqny experience with horsepower products im soaking the old one overnight just in case its clogged pics to follow tomorrow

yo JAMES,

WELCOME!

Adjustable Proportioning Valve

# 22520A

New

1978-79 Ford Bronco

1973-79 Ford F100, F150, F250, F350

Price: $49.00

http://broncograveyard.com/bronco/i-22520A-adjustable-proportioning-valve.html'>http://broncograveyard.com/bronco/i-22520A-adjustable-proportioning-valve.html

Installation of an adjustable proportioning valve is necessary when the reduction of brake line pressure is required to facilitate the balancing of front-to-rear brake bias. Both inlet and outlet are 1/8-27 NPT and come with compression fitting adapters. Pressure is able to be reduced by 57% in one line. This is use full in adjusting rear disc brakes for optimum performance. Some front disc brake conversions may benefit from this unit as well.

by Our SPONSOR, Jeff's Bronco Graveyard

Jeff at the Bronco Graveyard has offered a 2% discount to members of The BroncoZone for on line orders. To get your discount, enter the discount code BZMEMBER. Also you must include your BroncoZone User Name with the order.

http://broncograveyard.com

Proportioning Valve, Wilwood Installation Info & pic in a 78

Source: by Mike S (Broncster, BRONKSTER) at http://www.supermotors.net/registry/7387/59687

See if it = to JEff's or horsepower products

======

79 Bronco Pressure Differential (Proportioning) Valve Removal & Installation

1.Raise the vehicle on a hoist. Disconnect the brake warning lamp wire from the valve assembly switch.

To avoid damaging the brake warning switch wire connector, expand the plastic lugs so that the shell wire connector may be removed from the switch body.

2.Disconnect the brake hydraulic lines from the differential valve assembly.

3.Remove the ***** retaining the pressure differential, metering and proportioning valve assembly to the frame side rail or support bracket and remove the valve assembly.

To install:

4.Mount the combination brake differential valve assembly on the frame side rail or support bracket and tighten the attaching *****.

5.Connect the brake hydraulic system lines to the differential valve assembly and tighten the tube nuts securely.

6.Connect the shell wire connector to the brake warning lamp switch. Make sure that the plastic lugs on the connector hold the connector securely to the switch.

7.Bleed the brakes and centralize the pressure differential valve.



Adjustment; from Chilton Manual for 66-81 Bronco/ Ford truck; Scanned Copy Source: by Chilton via broncocity.com

thanks, went to bronco graveyard and ordered aftermarket proportioning valve #22519,my bronco still has drum brakes in back,should match up like orig.