Patent ID: 8348799

Claim:
A differential device for differentially distributing a driving force to first and second axles, the differential device comprising: a differential gear set configured to allow differential motion between the first and second axles; a casing rotatable about an axis, the casing housing and being drivingly coupled with the differential gear set and including a first end wall, a second end wall axially opposed to the first end wall, and a side wall disposed radially outward, the side wall in combination with the first end wall and the second end wall defining a chamber configured to house the differential gear set; a clutch engageable with the differential gear set; a solenoid configured to drive the clutch, the solenoid being disposed adjacent to the first end wall; and a magnetic core fixed to the solenoid, the core including a sleeve portion snugly and slidably fitting around an outer periphery of the side wall to radially position the core and the solenoid in place, wherein the side wall comprises a shoulder configured to abut on an end of the sleeve portion of the core.