Group 8W-31 (Transmission Control System)

8w-31-14 (5.9/8.0L/Diesel):

8w-31-16 (Diesel):

8w-31-17 (Diesel):

8w-31-18 (Diesel):

8w-31-19 (Diesel):

8w-31-20 (Electronic Transfer Case):

8w-31-21 (Electronic Transfer Case Except 3.7L):

8w-31-22 (Electronic Transfer Case Except 3.7L):

8w-31-23 (Electronic Transfer Case):

8w-31-24 (Electronic Transfer Case):

8w-31-25 (Electronic Transfer Case):