Sierra 1500 4WD V8-4.8L (2007)
Harmonic Balancer - Crankshaft Pulley: Specifications
Crankshaft Balancer Bolt - Installation Pass - to Ensure the Balancer is Completely Installed ................................................................. 330 N.m 240 lb ft
Crankshaft Balancer Bolt - First Pass - Install a NEW Bolt After the Installation Pass and Tighten as Described in the First and Final Passes .............. 50
N.m 37 lb ft
Crankshaft Balancer Bolt - Final Pass ................................................................................................................................................................. 140 degrees