The device includes a housing and an outer shell including tightly wound wire coils fitted within the housing. Rotatable armatures including associated commutators are disposed at outer end portions thereof. The armatures further include spring loaded brushes and a plurality of wire coils wrapped intermediately spaced adjacent to the commutators. The device further includes a drive shaft having bearings selectively spaced therealong that defines a fulcrum axis for the armature coils and output shafts connected to the drive shaft. A power supply source is electrically coupled to an A.C. or D.C. motor and disposed external of the housing. The armatures define an epicyclical train for connecting the drive shaft in a linear path so that a driving force can be equally divided between the vehicle wheels to thereby permit one vehicle wheel to revolve faster than another vehicle wheel.