ARB 4X4 Accessories 12 Bolt Toyota 8in. Air Locking Differential, Rear 30 Spline RD193 For Use With 30 Spline Axles;For Use In Shim Adjusted Style Housing;Air Activated Selectable Locker; Converts From Open Differential To fully Locked Or Spool; Simple Push Button Operation; Requires Air Compressor Sold Separately LEXUS TOYOTA 4RUNNER GX460 BASE LIMITED PREMIUM SR5 TRAIL 2010 2011 2012 2.7L 2TRFE (2694cc) 4.6L 1URFE (4608cc) 4L 1GRFE (3956cc) GAS ARB 4x4 Accessories ARB Toyota 8 Inch rear 12 Bolt Air Locking Differential - RD193 RD193 Differentials