Air Locking Differential Nissan C200 Air Locker;Air Activated Selectable Locker;Converts From Open Diff. To Spool;Push Button Operation For Use With 31 Spline Axles;For Use With All Gears;Requires Compressor Sold Separately ARB 4x4 Accessories ARB Air Locking Differential - RD201 RD201 Differentials