This aftermarket four-piece alloy transmission spur gear case is made for the TRAXXAS TRX4 Trail Crawler to replace the standard plastic unit and increase structural stiffness and steering precision. Fabricated from 6061 T6 aluminium, the straight arm layout helps resist deformation while preserving correct gear alignment during slow-speed technical driving.
The upgrade targets chassis stability and steering geometry rather than changing internal gear ratios. A two-hole tie rod pattern allows incremental adjustments to steering throw and toe for a more predictable response on rough terrain. Use this part only as an aftermarket upgrade on the TRX4 chassis.
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