Washer will fill , Agitate & Drain, but will not spin on any of the 4 different wash settings( Permanent Press, Normal, Gentle, or Pre-Wash.) When in Spin Mode, I hear a cliscking noise and the agitator feels like it is stuck. Any suggestions on what part of the Transmission /gearcase needs repair? 
In the back of the control panel there are screws to remove, then tilt the panel back, remove the ripply clamps and the lid switch plug. Remove outer panel by tilting back.
Put a jumper between the outer pins of the lid switch socket, then run washer in spin.
If the clutch plate above the tranny moves, you have a bad clutch. If it fails to move, you have a busted nylon gear in the tranny,