This is a replacement king pin set intended for the Axial Racing Yeti XL front knuckle, listed as model YTL004S from GPM. The pack includes four steel pins that locate the knuckle inside the hub carrier and are built to withstand the shear forces commonly experienced in off-road RC running.
Installation is straightforward for those used to front-end servicing: remove the wheel and knuckle, push out the worn pins, and install the new steel pins so they seat correctly with the existing bearings and hardware. Check for clearance and free rotation before final reassembly and avoid overtightening the surrounding screws.
Fit these as direct replacements for worn or damaged pins and inspect the hub and knuckle mating surfaces during service intervals to maintain predictable steering feel and suspension behaviour.
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