Traxxas 6855 Driveshaft Center Aluminum Slash 4x4Product DescriptionCenter driveshaft is formed from extruded 6061 T6 aluminum. There are no dog bones to wear, no drive cups to wobble. The extrusion process allows the shaft to be hollow and lightweight with internal splines that fit directly and securely onto the input shafts of the front and rear drive assemblies. The shaft runs perfectly straight and true and offers superior durability. Traxxas engineers highlighted this important innovation with