Eaton Elocker4 Differential 30 Spline Toyota FJ/4Runner/Land Cruiser 70/80/90/105/120The ELockers electromagnetic locking mechanism is the next generation of aftermarket differential technology. Performs as an open differential until you decide that you need more traction. Eaton ELocker is your push button solution to almost any traction problem. This Part Fits: Year Make Model Submodel 1996 2001 Toyota 4Runner Base 1984 1989 Toyota 4Runner DLX 1996 2009 Toyota 4Runner Limited 2003 2009 Toyota 4Runner Sport 1984 2009 Toyota 4Runner