98 expedition 4x4 5.4liter shift solenoid A malfunction
 

I recently experienced shifting problems with my truck so I took a reading and it displayed shift solenoid A malfuction so I was told to purchase a 4r100 eo4d solenoid block/pack and that should fix the problem can any one tell me if that is that the solution and can I get it thru the transmition pan and wat is the correct torque spec for my block thanks