This front knuckle arm kit fits Axial SMT10 platforms and carries the model number MJ021. Constructed from 6061-T6 aluminium, the arms are designed to replace stock plastic pieces where added rigidity and longer wear life are desired while keeping factory steering geometry intact.
The set includes hardened king pins that pair with Delrin bushings at the bearing contacts to cut play and maintain consistent steering motion. Provided hardware supports mounting and helps stabilise the constant velocity drives to improve steering fidelity without altering steering ratio.
As in the original parts listing, included items are king pins, stainless steel round head screws (3x18), 3mm silver lock nuts, and manual reference AXA31316. These are intended as upgrade components only; check compatibility with your chassis before use.
Use MJ021 knuckles to tighten steering play and get a firmer, more predictable response on Axial SMT10 Grave Digger builds; confirm correct assembly and fastener torque after installation.
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