I've got a GC manifold block on my Automatic that I'd like to get a backup repair kit for the pistons. I've tried emailing GC directly, but they have taken up to a month to respond .. figured some of you guys probably know more than the salesmen up there do anyway! An old bag with some used parts for this block had the label: 9070/2600116 Repair Piston Kit for HP GC Manifold - 3 Station. Anyone know what those numbers represent? I think the 2600116 may mean the manifold .. but can't find any reference to the number for the piston kit for it. I also have another manifold that I bought a while back off ebay for the solenoids, and it has 4026700 labeled on it and is a 7 station block. I haven't had a chance to compare the pistons directly, but from glancing they are a different design...anyone know if this block could be used in place of the 3 station one, just plug the unused ports? I assume some manifolds/pistons are for high pressure, low pressure, etc...but I can't seem to come up with somewhere I can find all that info.
