Where can I get one? I need one for a front disc/rear drum system on a '74. I checked the parts stores and all I can come up with is an adjustable one from a chassis fabricator, but it uses different fittings. I'd rather put a factory one on, but if it comes down to it, I guess I'll have to do some tubing work.
If you want it for the line to the rear, order one from Jegs or Summit. Summit catalog page 199 , left column center, $39.95. It will adjust the pressure to the rear drums downward. If your looking for a stock proportioning valve block, need to get one off a car. No new ones that I know of. Most often you will need to do some changes with the tubbing nut sizes unless you are changing over with parts from a donor car like your own, that had the option.
