TRAXXAS TRX4 Trail Crawler Front C Hub Stainless King Pins TRX4004S by GPM  [TRX4004S]

This RC-scale king pin set is built to stabilise front knuckle and wheel hub movement on TRAXXAS TRX4 Trail Crawler front C hub assemblies. The stainless steel pins give a tighter fit with C hubs to cut slop and deliver a firmer steering feel while keeping the assembly running smoothly under crawling loads.

Supplied as a 4 pcs set, these pins are intended for the front C hub layout on TRX4 Trail Crawler models. The smooth pin body and optimized king pin profile lower internal friction inside the C hub, helping preserve consistent steering input and more accurate wheel alignment at slow crawling speeds.

Installation tip: remove the C hub assembly to replace the original front king pins, slide the new stainless pins into the knuckle and hub bores, then reassemble and confirm free rotation without play. As this is a scale hop-up part, check fit with your existing C hubs, whether standard or modified, before final tightening.

Tuning use: a simple upgrade to tighten steering linkage tolerance and limit unwanted knuckle movement, useful when dialling in precise low-speed steering on technical rock lines.