Oil sending unit is toast. What is the trick to changing it, besides having very small hands and can see around corners? 2003 gmv v8

Engine Oil Pressure Sensor / Switch Replacement Removal & Installation 4.3L Engine To Remove:
Oil pressure sensor removal/installation (4.3L engine shown)

1. Clean the area near the oil pressure sensor.
2. Remove the distributor.
3. Disconnect the electrical connector from the oil pressure sensor.
4. Using J 41712 or equivalent, remove the oil pressure sensor from the fitting. NOTE: Note the orientation of the oil pressure sensor fitting before attempting to remove it. This is so it can be installed in the original position.
   
5. Remove the oil pressure sensor fitting, if necessary.

1. Install the fitting until snug, if it was removed.
   • Tighten the fitting to 11 lb ft (15 Nm). Continue to tighten the fitting until in the original position.
2. Apply sealant to the threads of the sensor.
   • Install and tighten the sensor to 22 lb ft (30 Nm).
3. Connect the electrical connector to the oil pressure sensor.
4. Install the distributor.
5. Check the engine oil level and adjust if necessary.

1. Remove the engine sight shield.
   
   
2. Disconnect the oil pressure sensor electrical connector.
   
   
3. Using J41712 sensor socket or equivalent, remove the oil pressure sensor.

1. Apply sealant GM P/N 12346004, (Canadian P/N 10953480), or equivalent, to the threads of the sensor.
2. Using J41712 sensor socket or equivalent, install the oil pressure sensor.
   • Tighten the sensor to 15 ft. lbs. (20 Nm).
3. Connect the oil pressure sensor electrical connector.
4. Install the engine sight shield.

1. Raise and safely support the vehicle NOTE: Clean the area around the sensor. Do not allow debris to enter the engine
   6.6L Oil pressure sensor
   
   
2. Remove or disconnect the following:
   • Engine oil pressure sensor electrical connector
   • Engine oil pressure sensor using a suitable tool

1. Apply sealant to the threads of the oil pressure sensor
2. Install or connect the following:
   • Engine oil pressure sensor and tighten the sensor
     1. Torque to: 22 ft. lbs. (30 Nm)
   • Engine oil pressure sensor electrical connector
3. Lower the vehicle
4. If required, check and adjust the engine oil level
5. Test drive the vehicle to confirm the repairs

1. Remove the engine appearance cover.
2. Disconnect the electrical connector from the oil pressure sensor.
3. to remove the sensor.

1. If installing the old sensor, apply sealant GM P/N 12346004 (Canadian P/N 10953480), or equivalent, to the threads of the sensor.
2. Using J 41712 or equivalent, install the sensor.
   • Tighten the sensor to 22 lb ft (30 Nm).
3. Connect the oil pressure sensor electrical connector.
4. Install the engine appearance cover.