The G2 Core Locker Utilizes The Reliability Of A Shift Fork Mechanism, Coupled To A Pneumatic Actuator Built-Into A Heavy Duty Aluminum Differential Cover For Unparalleled Reliability And Ease Of Service. The Heavy Duty Locking Differential Is Designed To Handle The Added Stress Of A Fully Locked Differential. The Core Locker'S Cast Iron Main Body And Forged Steel Cover Plate Offers Greater Strength Than Traditional Three-Piece Bodies. It Also Features A Two-Piece Main Body Assembly Using Existing Ring Gear Bolts (Instead Of Tiny Fasteners); A Three-Piece Cross Pin Assembly (In Place Of Single Piece Cross Shaft); And A Four-Axis Laser Cut Selector Cage (Instead Of Rods).