Anyone have a pinout for this? As in my earlier post when I disconnect lines under at the master cyl/distrubution block I have fluid to rears and right front.

It seems I have a bad solenoid in there (LF) but I cannot tell for sure. I would like to build a test rig (since this unit is crazy expensive)but don't know which pins are signal, voltage, or ground.

 

You could try a valve block from same period Buick, take the block to a scrapyard and compare. If you want the wiring diagram with pinout send me your email by PM.