What parts are the main reducer and differential of Audi 100 car?

1. The reducer consists of a rear drive conical driving gear (also known as a small splay gear) and a conical driven gear (also known as a basin gear and a large splay gear) engaged at right angles.

2. The differential is composed of a differential case, a cross shaft, a planetary gear and a half shaft gear, and is a differential mechanism between the reducer basin gear and the half shaft.