These are also referred to as diff joints or diff cups

5cm) -- each

Traxxas Slash

These are Replacement Cup Joints for the HPI Savage

This is a pair of Rear Shock Bodies for the HPI Pulse Buggy 4

Kyosho IF21 13T Bevel Drive Gear Inferno MP777 Mini 8IGHT Parts These are also referred toKyosho IF21 13T Bevel Drive Gear Inferno MP777 The Kyosho IF21 Bevel Drive Gear is a genuine 13 tooth replacement part for the Inferno MP777, meshing with the differential's ring gear to transfer engine power. A fresh gear restores smooth mesh after the original wears or chips a tooth. Replace a worn drive gear with this factory matched part to keep power delivery smooth on your Inferno MP777. Genuine Kyosho part number IF21 13 tooth bevel drive gear