What type of axle housing resembles a banjo?

The type of axle housing that resembles a banjo is known as a "banjo axle" or "banjo housing." This design features a distinctive shape, where the center section is rounded and resembles the body of a banjo, with the axle tubes extending outwards. Banjo axles are commonly found in older vehicles and some modern performance applications due to their lightweight and compact design. They typically house the differential and allow for efficient power transfer from the driveshaft to the wheels.