Losi Heavy Duty Differential Case
Losi have introduced this heavy duty differential case that is suitable for the Losi 8ight, 8ight-T and LST2. Through the use of new heat resitant metal inserts, the differential can now withstand serious punishment and because the differential pins are now press fit they keep from beating against, and ultimately damaging, the differential casing.
Source: Losi [losi.com]