Road Noise From Lower Rocker Area

XI. Road noise from lower rocker area.

Road noise from the lower rocker area may be reduced by removing the outer sill plate and covering the three, 3/4 inch holes with 3M silencer strips. The rear door is similar but only has two holes to cover under the sill plate.

Labor Operation: T-3366
Labor Time 0.7 Hr.

Parts are currently available from GMSPO.