ARB 4X4 Accessories Toyota 10.5in. Air Locking Differential, Rear 36 Spline RD146 For Use With 36 Spline Axles;For Use With All Ratios;Air Activated Selectable Locker; Converts From Open Differential To fully Locked Or Spool; Simple Push Button Operation; Requires Air Compressor Sold Separately TOYOTA TUNDRA BASE LIMITED SR5 2007 2008 2009 2010 2011 4.6L 1URFE (4608cc) 4.7L 2UZFE (4663cc) 4.7L 2UZFE (4663cc) i-Force 4L 1GRFE (3956cc) 5.7L (345) 3URFE i-Force 5.7L (345) FLEX 3URFBE i-Force FLEX GAS ARB 4x4 Accessories ARB Toyota 10.5 Inch Air Locking Differential - RD146 RD146 Differentials