What is bell housing on transmission?

The bell housing is the part of a transmission that connects the transmission to the engine. It is usually made of metal and is bolted to the back of the engine block. The bell housing also serves as a cover for the flywheel and clutch assembly, which is used to transfer power from the engine to the transmission. The bell housing must be properly aligned with the engine and transmission to ensure smooth operation. It also contains the starter motor and provides a mounting point for the transmission crossmember. Different types of bell housings are designed for different applications and can vary in size and shape depending on the type of transmission and the vehicle it is used in.