The main part of the differential is a drive gear (or pulley in a belt transmission) with multiple holes cut through it, following its outside diameter.
This component has multiple holes cut through it, following its outside diameter. The main part of the diff is the gear (or pulley in a belt transmission).
The main part of the diff is the gear (or pulley in a belt transmission). This component has multiple holes cut through it, following its outside diameter.
The main part of the diff is the gear (or pulley in a belt transmission). This component has multiple holes cut through it, following its outside diameter.