In every aspect of automotive production, quality, productivity and cost are crucial matters. The purpose of this research is to improve the productivity of slip yoke for automotive propeller shaft. This paper presents how to redesign the component that currently manufactured as forged one body type. Attention was focused on not only reducing processing time but insuring durability of the component simultaneously. In Automotive, propeller shaft is the device for transferring power from engine to axle via transmission, and the slip yoke is one of the main parts in the product. Propeller shafts are subject to torsion and shear stress, they thus need to be strong enough to bear the stress.