On the master cylinders there is a number stamped on the front nut. This number determines the rear caliper line pressure. There is a spring in them that controls the proportioning valve. Does anyone here have a listing on the different types. There are different ones for ef, el sedan, wagon, ute ect. I need a list on these if anyone knows them??

So you're talking about the split point ??
'E' sedans/XG/XH utes/vans have the same split point, 'E' wagons have a higher pressure split.
The number represents this pressure in megapascals (MPa) IIRC.