An automotive driveline component has a housing and a shipping cap. The automotive driveline component can be a component of a power transfer unit (PTU), a final drive unit (FDU), a rear drive module (RDM), or a drive shaft. The housing has a wall that partly or more defines an opening. The opening is open to an exterior of the housing when the automotive driveline component is in an uninstalled state. The shipping cap can be temporarily secured in the opening. The shipping cap has a liquid collector for precluding residual lubricant in the housing from pooling at the opening. The liquid collector can be in the form of a sump, an absorbent material, or both.