Removal Procedure
WARNING: This page is about a different car, the 2023 GMC Sierra 3500 HD and 2023 GMC Sierra 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Courtesy of GENERAL MOTORS COMPANY
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Using a suitable adapter and an arbor press, remove and discard the transfer case front output shaft rear bearing (1) and transfer case front output shaft front bearing (2) from the front output shaft.