Solenoid Pressure Regulator Valve Spring

[adiel]

Hello I trying to check/replace the Solenoid Pressure Regulator Valve Spring. I cannot find out where its at. Does anyone know and can point it out in the picture?

Here is the part I am trying to check/replace:

http://www.transmissionspecialty.com/parts/parts/68942-01.htm

Thanks,
Adiel