The Yokomo YOKBM415S is a front steering block made for the Yokomo B-Max4 touring chassis. This scale replacement element locates in the front suspension and steering assembly, allowing drivers to replace worn bearings and ball-stud interfaces or swap uprights during setup work.
Installation is straightforward when fitting like-for-like parts: remove the front upright, transfer reusable bearings and hardware, fit the YOKBM415S into the hub carrier, and confirm the steering linkage rotates freely. After reassembly, check wheel alignment and steering centring before running the car.
From a setup perspective the steering block affects toe, caster and ackermann behavior, so changing blocks is part of iterative tuning rather than a single quick fix. Inspect associated bearings and ball studs for wear when replacing the block, and confirm linkage geometry remains within the intended range for your B-Max4 chassis.
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