Molded composite LEFT steering block for 4mm King Pin. Hard material. Marked "L" for effortless identification. Composite steering block is redesigned to utilize the 4mm king pin axle, features redesigned Ackerman positions for improved steering, and it is molded from a special graphite composite product for minimal friction contrary to the kingpin. The steering blocks utilize ultra-precise wheel axles CNC-machined from premium HUDY Spring Steelââ? which can be additionally hardened and hand ground for precision fitment. Use with matching right steering block #372214.