Question

a four wheel drive vehicle will not shift from four wheel drive into two wheel * 1 point drive. this could be caused by a:
shorted clutch safety switch
twisted axle
failed axle servo motor
stretched transfer case chain

Explanation:

A stretched transfer - case chain can cause issues with the transfer of power between different drive - modes in a four - wheel drive vehicle, preventing it from shifting from four - wheel drive to two - wheel drive. A shorted clutch safety switch is related to starting the vehicle rather than drive - mode shifting. A twisted axle may cause vibrations or handling issues but not specifically drive - mode shifting problems. A failed axle servo motor is not a typical cause of this type of drive - mode shifting problem.

Answer:

stretched transfer case chain