GPM TRAXXAS TRX4 Rear Knuckle Inner Set 6061 T6 TRX4022 - RC Spare Part  [TRX4022]

Rear knuckle inner set for TRX4 trail use

The TRX4022 aluminum rear knuckle inner set replaces the stock plastic inners on TRAXXAS TRX4 Trail Crawler axles and is focused on holding the inner gear train steady during low speed, high torque crawling and trail manoeuvres.

Components are CNC machined from 6061 T6 aluminum for consistent geometry and surface finish. The kit ships with stainless steel cap head screws matched to the parts so you can fit the inners without sourcing extra fasteners.

Use these metal inners when you need increased durability at the rear knuckle junction and reduced lateral play that can upset gear mesh while negotiating technical obstacles. Confirm fit and screw length against your axle assembly before final torque.

Ideal for replacing worn plastic inners or upgrading to a stiffer metal option; check clearance and gear mesh during test fitting to avoid binding.