This RC-scale king pin set is made to stabilize the front knuckle and wheel hub movement on TRAXXAS TRX4 Trail Crawler front C hub assemblies. The stainless steel pins provide a tighter fit with C hubs to reduce slop and improve steering feel while keeping the assembly running smoothly under crawling conditions.
Delivered as a 4 pcs set, these pins are intended for the front C hub configuration on TRX4 Trail Crawler models. The smooth body and king pin profile lower internal friction in the C hub assembly, which helps maintain consistent steering inputs and more precise wheel alignment during slow-speed crawling.
Installation note: replace the original front king pins by removing the C hub assembly, slide the new stainless pins into the knuckle and hub locations, then reassemble and check for free rotation without play. Because this is a scale RC part, verify fit with your existing C hubs, whether original or modified, before final assembly.
Tuning role: these pins are a simple hop-up to tighten steering linkage tolerance and reduce unwanted movement at the knuckle, useful when dialing in precise slow-speed steering on rock crawling courses.
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