... low noise 3.Increase in vehicle capacity BW44138005 Differential shell has a hole in the middle of both sides. ... the housing side wall, the lower edge of the shell Positioning for the spiral bevel gear. Spiral bevel gear ... holes, as described in the head with self-locking shell spline. Simple structure, the assembly of high precision, ... to customer’s demand are available. BW44138005 DIFFERENTIAL SHELL