Abstract: A drive unit for a window regulator assembly incorporating improved component assembly features. The drive unit motor assembly is provided with motor locating features, and a housing is provided with attachment features. The motor locating an attachment features have snap-fit attachment. The assembly provides an assembly process in which a splined stub shaft of the motor assembly may be aligned with an internal splined bore of a drum gear as the motor assembly and housing are fastened together. The motor locating feature snap fits with the attachment features in a final assembled condition.