Operation CHARM
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Sierra 1500 4WD V8-6.0L Hybrid
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Harmonic Balancer - Crankshaft Pulley
Harmonic Balancer - Crankshaft Pulley
Tighten the USED bolt to
330 Nm (240 lb ft)
Remove the USED crankshaft balancer bolt.
Tighten the NEW bolt a first pass to
50 Nm (37 lb ft).
Tighten the bolt a final pass to
140 degrees