Sierra 1500 2WD V8-6.0L Hybrid (2010)
4. Remove the valve lifter oil manifold bolts (2).
5. Remove the valve lifter oil manifold (1).
Note: Remove only the outer gasket from the manifold. Do not disassemble any of the internal components of the manifold in an attempt to
remove the 8 inner sealing gaskets. If the inner gaskets are cut or damaged, replace the manifold as an assembly. Only use a wire-cutter type tool in
order to minimize the amount of debris. Do not use a rotary-type cutting tool on the retaining straps.
6. Identify the 8 gasket retaining strap locations (1-8).