This Yokomo Y2-415SA4A Φ4 Steering Block Pin is a steel upgrade for YD-2 steering assemblies that sharpens steering limits without restricting suspension movement. It replaces the standard screw to reduce mechanical interference at extreme steering angles.
The original set screw can cause the steering block to bind during full lock, which compromises smooth suspension travel. Using the Y2-415SA4A pin removes that contact point so the suspension can move freely and chassis response remains stable.
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