Removal Procedure

Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
Remove the right wheelhouse liner. Refer to Front Wheelhouse Liner Replacement .
Fix the drive belt tensioner, remove the drive belt from crankshaft balancer and lay aside. Refer to Drive Belt Replacement .
Rotate the engine clockwise until the bore (2) in the crankshaft balancer aligns with the mark (1) on the engine front cover.

Fig 1: Bore And Mark
Courtesy of GENERAL MOTORS COMPANY

NOTE: The crankshaft balancer can be incorrectly installed 180° from the required position. Be sure to note the location of the alignment hole on the crankshaft balancer prior to removing the crankshaft balancer from the engine.
Install EN-49979 crankshaft shock mount retainer to EN-956-1 extension.
Loosen the crankshaft balancer bolt (4) while fixing the crankshaft balancer (3) with EN-49979 crankshaft shock mount retainer (1) and EN-956-1 extension (2).

Fig 2: Crankshaft Balancer, Retainer And Extension
Courtesy of GENERAL MOTORS COMPANY
Remove and DISCARD the crankshaft balancer bolt (2).

Fig 3: Crankshaft Balancer And Bolt
Courtesy of GENERAL MOTORS COMPANY
Remove the crankshaft balancer (1).