Impala V6-3.8L SC VIN 1 (2005)
Important: For aluminum oil pans, begin with step 4. For steel oil pans, skip steps 4 and 5.
1. For steel oil pans, apply a continuous bead 6.35 mm (0.25 in) thick of RTV sealer GM P/N 12378521 (Canadian P/N 88901148) to the topside of
the new windage tray gasket. Apply the RTV sealant directly over the sealing bead.
2. Install the NEW windage tray gasket onto the engine.
3. Apply a continuous bead 6.35 mm (0.25 in) thick of RTV sealer GM P/N 12378521 (Canadian P/N 88901148) to the topside of the new windage
tray gasket. Apply the RTV sealant directly over the sealing bead.
