This is the procedure in the AUTO ZONE repair help...note that it has you remove the hoses AFTER removal of the pump. If they could be removed in place it would have had you do that prior to pump removal.

3.5L & 3.9L Engines

Please note that the power steering pump pulley must be removed to access the pump retaining bolts. Special tools are required to draw the pulley off the pump shaft and to later press the pulley onto the pump shaft. A shop press cannot be used to install the pulley or the pump will be damaged.

1. Place a drain pan under the vehicle.
2. Remove the coolant surge tank (coolant reservoir).
3. Remove the cosmetic/acoustic engine cover.
4. Remove the accessory drive belt.
5. Remove the accessory wiring junction block and set aside.
6. Remove the power steering pump pulley from the pump noting the following:
   1. Use a power steering pump pulley remover. These pullers typically have a ridge that surrounds the collar on the pulley center.
   2. Turn the puller screw making sure the center screw is centered in the end of the pump shaft.
   3. Draw the pulley from the pump shaft.
7. Disconnect the pressure line and return hose from the power steering pump.
8. Unfasten the pump retaining bolts and remove the pump from the engine.

1. Install the pump to the engine. Install the bolts and tighten to 25 ft. lbs. (34 Nm).
2. Connect the power steering return line.
3. Connect the power steering pressure line. Using a -crows foot- adapter and a torque wrench, torque the pressure line fitting to 20 ft. lbs. (27 Nm).
4. Install the power steering pump pulley noting the following.
   1. Use a power steering pump pulley installer such as J 36015, or equivalent. This type of installer threads into the end of the pump shaft. A nut is then turned to press the pulley onto the pump shaft.
   2. The face of the pulley hub must be flush with the end of the pump shaft.
      
      WARNING
      Do not attempt to use a shop press to install a pump pulley.