ARB 4X4 Accessories Toyota 8in. IFS Air Locking Differential, Front 30 Spline RD131 For Use With 30 Spline Axles;For use with 50mm Carrier Bearing I.D. 78/79/100/105 Series;Air Activated Selectable Locker; Converts From Open Differential To fully Locked Or Spool; Simple Push Button Operation; Requires Air Compressor Sold Separately TOYOTA LAND CRUISER BASE 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 4.7L 2UZFE (4663cc) 4.7L 2UZFE (4663cc) i-Force 5.7L (345) 3URFE i-Force GAS ARB 4x4 Accessories ARB Toyota 8 Inch IFS Air Locking Differential - RD131 RD131 Differentials