Brakes dragging question

[rockyrivermark]

Originally Posted by RichardJ

>>The only thing left is proportional valve. Currently it's the original combination valve from the drum/drum system<<

YOU DON'T HAVE A COMBINATION VALVE !!!

You have a Pressure Differential Switch. Fluid from the MC for the Front brakes goes in the side and out the bottom. Fluid for the Rear brakes goes in the other side and out the bottom. A sealed piston sits between the two and doesn't move if both pressures are the same. Any failure in the front or rear system causes the piston to move, closing the switch, turning on the Brake Failure Warning Light.

You don't have a wire connection on your switch. You don't have an way of knowing it you have correctly bled the rear brakes. I told you in an earlier post that with only a Switch Block and NO COMBINATION VALVE AND NO PROPORTIONG VALVE, your rear brakes should easily lock up and skid the rear tires.

Do you even have Rear brakes?
Are the Front brakes doing 100% of the braking?
Are the Front brakes actually dragging or are they just getting Hot?
Are you ever going to jack up one of the front wheels to see if it is dragging?

I haven't been able to drive the truck as I've had some recent issues following a back surgery.
Lighten up Francis

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