K 3500 Truck 4WD V8-6.0L VIN U (2002)
3. Remove reverse signal tube (2) from main valve body (3).
4. Remove pressure switch assembly (1) from main valve body (3).
5. Remove F trim solenoid retainer (1).
6. Remove F trim solenoid (7), sleeve (4), valve (3), and spring (2).
7. Remove D ON/OFF shift solenoid retainer (1).
8. Remove D ON/OFF shift solenoid (4).
9. Remove O-rings (2,3) from D ON/OFF shift solenoid (4).