Editing Transfer case (section)

{{Short description|Drivetrain used in four-wheel drive vehicles}}
[[File:NP231PTmSOTF.jpg|thumb|Inside of a [[New_Venture_Gear#Transfer_cases|231 New Process Gear]] transfer case.  Part-time/Manual, shift on the fly]]

A '''transfer case''' is an intermediate [[gearbox]] that transfers power from the [[transmission (mechanics)|transmission]] of a motor vehicle to the driven [[axle]]s of [[four-wheel-drive]], [[all-wheel-drive]], and other multi-axled on- and off-road machines. A part of the vehicle's [[drivetrain]], it employs [[drive shaft]]s to mechanically deliver motive power.  The transfer case  also synchronizes the difference between the rotation of the front and rear wheels (only high-speed 4wd-Awd systems), and may contain one or more sets of [[gear ratio|low range gears]] for off-road use.