TRAXXAS TRX4 Rear Knuckle Inner Case Brass Tuning TRX4022BX by GPM  [TRX4022BX]

TRAXXAS TRX4 TRAIL CRAWLER Brass Rear Knuckle Arms Inner Case - 18pc set - GPM TRX4022BX
Price:
£29.96
Brand:
GPM
Model:
TRX4022BX
GTIN:
4894538344134
Condition:
Brand New
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alt="TRAXXAS TRX4 TRAIL CRAWLER Brass Rear Knuckle Arms Inner Case - 18pc set - GPM TRX4022BX" title="TRAXXAS TRX4 TRAIL CRAWLER Brass Rear Knuckle Arms Inner Case - 18pc set - GPM TRX4022BX"
alt="TRAXXAS TRX4 TRAIL CRAWLER Brass Rear Knuckle Arms Inner Case - 18pc set - GPM TRX4022BX" title="TRAXXAS TRX4 TRAIL CRAWLER Brass Rear Knuckle Arms Inner Case - 18pc set - GPM TRX4022BX"
alt="TRAXXAS TRX4 TRAIL CRAWLER Brass Rear Knuckle Arms Inner Case - 18pc set - GPM TRX4022BX" title="TRAXXAS TRX4 TRAIL CRAWLER Brass Rear Knuckle Arms Inner Case - 18pc set - GPM TRX4022BX"

Overview Summary

This is a brass inner case kit tailored for rear knuckle arms on TRAXXAS TRX4 Trail Crawler models. The brass replacements for the factory plastic inner housings increase rotating mass at the rear wheels and help keep the knuckle internal gear train more stable under load, which aids slow-speed control.

The set includes the brass inner cases and the stainless steel cap head screws required to install them, allowing a direct swap with the original housings. The additional hub mass is intended to improve wheel bite and reduce gear play during technical crawling.

Use this aftermarket reinforcement to fine-tune rear-end traction on rocky or low-traction lines where added hub weight promotes smoother gear engagement. This upgrade does not change steering geometry.

Packing includes

  • Brass Rear Knuckle Arms Inner Case - 2pcs
  • Stainless Steel Cap Head Screw 2.5*16 - 14pcs
  • Stainless Steel Cap Head Screw 2.5*8 - 4pcs

Original Name / Part No:

Stabilize the inner gears of the rear knuckle arms to ensure the gears are running smooth

Compatible Models

  • TRAXXAS-1/10 TRX4 TACTICAL UNIT-82066-4FORD BRONCO 82046-4BLAZER 82076-4MERCEDES-BENZ G500TRX-6 MERCEDES-BENZ-88096-4

A practical, install-focused rear knuckle upgrade for TRX4 Trail Crawler owners seeking more consistent knuckle gear behaviour and added hub mass; confirm model match prior to fitting.

What exactly is supplied

The kit ships with two brass rear knuckle inner cases and the stainless steel cap head screws listed in the Packing includes section for direct installation.

Will this affect gearing or drivetrain wear

The design aims to stabilise the knuckle gear engagement rather than change gear ratios; better engagement can reduce intermittent slop but regular maintenance is still recommended.

Is special setup needed after installation

No special setup is required beyond reassembling the knuckle with the supplied screws; check alignment and gear mesh during initial test runs.

Can these be used on heavily modified TRX4 builds

They are an aftermarket strengthening and weighting option and can be used on modified builds, but always confirm physical compatibility with your specific hubs and axle conversions before fitting.

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