Installation Procedure

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Sliding New Selector Shaft Seal Over Selector Shaft

Courtesy of GENERAL MOTORS CORP.

Carefully slide a new manual shift shaft seal (1) over the manual shift shaft (2) with the wide face of the steel case facing outward. Position so that the seal is starting to enter the seal bore.
Obtain J 43909 and remove the inner sleeve so that the tool will slide over the manual shift shaft.
Slide the J 43909 into position so that the end of the tool contacts the seal being installed. Use a mallet to strike the J 43909 and drive the new seal into the seal bore until the seal is seated at the bottom of the bore.