Kelford Cams - Mitsubishi 4G63 Balance Shaft Delete KitKelfords 4G63 Balance Shaft Delete kit. Key Features: Precision machined EN30b steel, Ground bearing surfaces to under 7Ra, Nitreg+ONC black Nitride Surface hardening for extreme durability. Kit includes: 1 x Balance Shaft, 2 x Bearings to block oil, 1 x Bearing for Balance Shaft. Rubberized plug, CNC machined crank spacer, New Bolt and Washer.