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Test the proportioning valve's electrical state: Use a volt omh meter and test continuity between that connection tang and the chassis. If there is continuity, the valve needs adjusting if you posses the knowledge and ability, replacement if you don't. Throwing new parts on the ends of the circuits is the last thing to do.
Quote from: JohnnyPopper on April 08, 2020, 10:23:18 PMTest the proportioning valve's electrical state: Use a volt omh meter and test continuity between that connection tang and the chassis. If there is continuity, the valve needs adjusting if you posses the knowledge and ability, replacement if you don't. Throwing new parts on the ends of the circuits is the last thing to do.I had time to test for continuity and there was none.
Have you replaced the drums with high quality not made in China drums ?New high quality shoes ? Do the parking brakes work good ?Replaced the calipers with high quality new, not rebuilt ones ?New quality pads ?The master cylinder with a quality new not rebuilt one ?Most of the pedal feel comes from the rear drums , while most of the actual stopping power comes from the front brakes.If the rear brakes are not adjusted properly your pedal will drop a long way before it does anything And lastly you may have to add in a aftermarket adjustable proportioning valve We had to install one on ours The factory prop valve just would not work right .I adjust the rear brakes by turning the drum and using a brake spoon or screwdriver to click the star wheel two clicks at a time until you can hear the shoes scrape the drum Then if everything is working properly they will self adjust when you back up and apply the parking brakeYou don’t really need them to lock up on pavement But you can test them on dirt to see which wheels are locking up first , showing you which wheels are not providing enough brakes.Also bleed them using a vacuum bleeder or a power bleeder that forces the fluid through the lines If you have a tiny air bubble anywhere in the system is will take away a lot of braking power