Connection from a GMC167 master cylinder (I think is right as it has the pressure switch on the side of the body).
Regulator current connections:
Top left - from lower master cylinder connection
Top right - from Upper master cylinder connection
Bottom left - to front brakes
Bottom right - to rear brakes
Any help greatly appreciated,
Thanks, Jamie
Edited by hairyhammie, 30 May 2017 - 08:47 AM.