This is the factory OEM driver's side front INNER half shaft between the transmission hanger bracket. If the splines on either end get damaged it may need replacing, or it may be needed for those doing transmission swaps.
The clip on the outer part where it goes through the hanger is NOT included with the shaft, so it is listed separately. The clip IS included with the hanger/carrier bearing kit.
NOTE: The Inner Halfshaft for the 91-92 FWD Manual Transmission is no longer available for ordering.