The world's premier traction aid, an ARB Air Locker(TM) keep you moving in all conditions. With the flick of the switch an Air Locker gives instant lock at any moment and its super strong design allows activation at any speed allowing you to tackle the toughest terrain. The advantage of the Air Locker lies in the pneumatically operated locking system inside the differential. When activated, the Air Locker prevents the internal differential gears from rotating and therefore prevents the axle shafts from turning independently of each other. With both wheels tied directly to the rotation of the ring gear, the vehicle maintains maximum possible traction at all times. When unlocked, it operates like a conventional open differential. An Air Locker equipped vehicle can be driven in a slower, safer and more controlled manner, greatly reducing the likelihood of vehicle damage and environmental impact.

This Part Fits:

Year	Make	Model	Submodel
1967-1974,1976	Ford	F-100	Base
1975-1976	Ford	F-100	Custom
1975-1976	Ford	F-100	Northland
1975-1976	Ford	F-100	Ranger
1975-1976	Ford	F-100	Ranger XLT
1977	Ford	F-150	Base
1977	Ford	F-150	Custom
1977	Ford	F-150	Northland
1977	Ford	F-150	Ranger
1977	Ford	F-150	Ranger XLT
1977	Ford	F-150	XLT
1987-1992	Mitsubishi	Mighty Max	1 Ton
1983-1996	Mitsubishi	Mighty Max	Base
1983-1984	Mitsubishi	Mighty Max	S
1983-1985	Mitsubishi	Mighty Max	SP
1986-1989	Mitsubishi	Mighty Max	Sport
1983-1989	Mitsubishi	Mighty Max	SPX
1989-1993,1998-2000	Mitsubishi	Montero	Base
2001-2006	Mitsubishi	Montero	Limited
1989-1997	Mitsubishi	Montero	LS
1990-1993	Mitsubishi	Montero	RS
1989-1990	Mitsubishi	Montero	SP
1989-1990	Mitsubishi	Montero	Sport
1992-1997	Mitsubishi	Montero	SR
2001-2004	Mitsubishi	Montero	XLS
1997-2003	Mitsubishi	Montero Sport	ES
1999-2003	Mitsubishi	Montero Sport	Limited
1997-2004	Mitsubishi	Montero Sport	LS
1997-2004	Mitsubishi	Montero Sport	XLS
2001	Mitsubishi	Montero Sport	XS
2006	Mitsubishi	Raider	DuroCross
2006-2009	Mitsubishi	Raider	LS
2006	Mitsubishi	Raider	XLS