Quote:
Originally Posted by KULTULZ
Just a warning, beware of these so-called disc brake changeover vendors. Few seem to have full comprehension and now are supplying off-shore parts.
Case in point, this individual went to an EvilBay vendor with a four wheel manual drum pickup and talked to the guy. Said he wanted power dual reservoir drum for now but would like to add front disc later.
Below are photos of what he was sold and installed-
Now he has to can it and start over.
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All he has to do is switch the lines going
into the combo valve, so the secondary (smaller) rear brake M/C chamber goes between the prop valve adjuster and pressure switch, and the larger front M/C chamber goes to the front of the pressure switch with the two output ports. When front discs are installed, removal of the red 10 lb residual is all that's needed.