What is transfer case of an automobile?

A transfer case is a gearbox that allows the driver to select between two or more different gear ratios. It is used in vehicles that have more than one driven axle, such as four-wheel drive or all-wheel drive vehicles. The transfer case transfers power from the transmission to the front and rear axles.

There are two main types of transfer cases:

* Part-time transfer cases: These transfer cases can be shifted between two-wheel drive and four-wheel drive. Part-time transfer cases are typically used in light-duty vehicles, such as SUVs and pickup trucks.

* Full-time transfer cases: These transfer cases automatically switch between two-wheel drive and four-wheel drive as needed. Full-time transfer cases are typically used in heavy-duty vehicles, such as trucks and buses.

Transfer cases can also be classified according to the type of drivetrain that they are used with:

* Solid-axle drivetrains: These drivetrains use a solid axle to connect the front and rear wheels. Solid-axle drivetrains are typically used in heavy-duty vehicles.

* Independent rear suspension (IRS) drivetrains: These drivetrains use a separate suspension system for the front and rear wheels. IRS drivetrains are typically used in light-duty vehicles.

The type of transfer case that is used in a vehicle depends on the vehicle's intended use and the type of drivetrain that it has.