Silverado 1500 4WD V8-6.0L (2010)
12. Remove and discard the old gasket (1).
Installation Procedure
Note:
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All gasket surfaces should be free of oil an/or other foreign material during assembly.
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DO NOT reuse the valve rocker arm cover gasket.
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If the PCV valve grommet has been removed from the rocker cover, install a NEW grommet during assembly.
1. Install a NEW rocker cover gasket (1).