TRAXXAS TRX4 Trail Knuckle Inner Set 6061 T6 TRX4022 by GPM  [TRX4022]

Upgraded rear knuckle inners for tougher trails

The TRX4022 aluminum rear knuckle inner set is an aftermarket replacement sized for TRAXXAS TRX4 Trail Crawler axles, engineered to keep the inner gear set properly aligned under heavy crawling loads.

Each piece is produced from 6061 T6 aluminum and precision finished with CNC machining to ensure repeatable fit. Stainless steel cap head screws are included so installation is straightforward without extra parts hunting.

These inners aim to reduce lateral play at the knuckle junction and increase wear resistance compared to stock plastic parts. Always verify screw lengths and run a gear mesh check after fitting to prevent binding.

A practical upgrade for crawlers wanting a metal alternative to stock inners; perform a trial assembly before final torque to confirm fit.