Amigo 4WD L4-2.3L (4ZD1) (1989)
Use a spring tester to measure the detent spring tension. If the measured value is less than the specified limit, the detent spring must be
replaced.
BLOCK RING AND DOG TEETH CLEARANCE
Use a thickness gauge to measure the clearance between the block ring and the dog teeth.
If the measured value exceeds the specified limit, the block ring must be replaced.