TRAXXAS TRX4 Adjustable Front C Hub Upgrade TRX4019A by GPM  [TRX4019A]

Precision front C hub upgrade for professional trail tuning

This adjustable front C hub kit is intended for TRAXXAS TRX4 Trail Crawler scale rigs and offers a precision-focused upgrade path. The kit replaces factory plastic C-hubs and hardware with aluminum 6061 T6 components, Delrin collars, and stainless steel king pins to deliver a firmer steering pivot and predictable damper mounting locations. The set ships as a 28 piece kit tailored to scale trail applications.

Engineers and experienced hobbyists will use this kit to refine steering geometry and damper placement. By changing the C-hub assembly and adjusting the number of Delrin collars at each mount, damper angle and effective ride height can be tuned. The mount is offset slightly outward from the stock vertical orientation, modifying lateral support and enabling incremental height adjustments via collar stacks.

Installation guidance based on the supplied hardware list:

• Assemble the C-hubs and knuckle connection using the provided king pins and stainless screws, maintaining cleanliness and applying light lubrication at metal contact points.
• Use round head screws 3x18 (2 pcs) for the tie rods when implementing the modified tie rod-to-damper connection noted in the kit documentation.
• Match damper mounting screw length to collar count: no collar use 3x14, one collar use 3x16, two collars use 3x18, three collars use 3x20; ensure correct thread engagement and avoid over-tightening.
• After fitting, verify steering link geometry to prevent binding and confirm full travel compatibility with your servo and steering stops.

This aluminium C-hub kit replaces weaker plastic components to provide a steadier steering pivot and precise damper mounting options; follow the hardware guidance and validate geometry incrementally during setup.