Transfer Case Input Shaft – GM (23321680)

Transfer Case Input Shaft transfers drive across a moving joint. Two shafts that look alike can differ in length by enough to bottom out in the joint, so the measurement matters more than the model year.

Replace the Case Input Shaft when there is rotational play at a joint, when the shaft is bent, or when a seal surface is grooved past the point of sealing. Measure the installed length against the specification.

This Case Input Shaft is listed as part 23321680 (Transfer Cases). Where a number has been superseded, the current reference is the one that ships, so check any supersession note before ordering.

This is GM dealer-sourced stock rather than an equivalent, so the number on the Case Input Shaft traces straight back to the manufacturer.