TRAXXAS TRX4 6pc Rear Knuckle Inner Case 6061 T6 Alloy TRX4022B by GPM  [TRX4022B]

TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Knuckle Arms Inner Case - 6pc set - GPM TRX4022B
Price:
AUD$27.43
Brand:
GPM
Model:
TRX4022B
GTIN:
4894538285383
Condition:
Brand New
1 Reviews
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alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Knuckle Arms Inner Case - 6pc set - GPM TRX4022B" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Knuckle Arms Inner Case - 6pc set - GPM TRX4022B"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Knuckle Arms Inner Case - 6pc set - GPM TRX4022B" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Knuckle Arms Inner Case - 6pc set - GPM TRX4022B"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Knuckle Arms Inner Case - 6pc set - GPM TRX4022B" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Knuckle Arms Inner Case - 6pc set - GPM TRX4022B"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Knuckle Arms Inner Case - 6pc set - GPM TRX4022B" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Knuckle Arms Inner Case - 6pc set - GPM TRX4022B"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Knuckle Arms Inner Case - 6pc set - GPM TRX4022B" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Knuckle Arms Inner Case - 6pc set - GPM TRX4022B"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Knuckle Arms Inner Case - 6pc set - GPM TRX4022B" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Knuckle Arms Inner Case - 6pc set - GPM TRX4022B"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Knuckle Arms Inner Case - 6pc set - GPM TRX4022B" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Knuckle Arms Inner Case - 6pc set - GPM TRX4022B"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Knuckle Arms Inner Case - 6pc set - GPM TRX4022B" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Knuckle Arms Inner Case - 6pc set - GPM TRX4022B"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Knuckle Arms Inner Case - 6pc set - GPM TRX4022B" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Knuckle Arms Inner Case - 6pc set - GPM TRX4022B"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Knuckle Arms Inner Case - 6pc set - GPM TRX4022B" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Knuckle Arms Inner Case - 6pc set - GPM TRX4022B"
alt="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Knuckle Arms Inner Case - 6pc set - GPM TRX4022B" title="TRAXXAS TRX4 TRAIL CRAWLER Aluminum Rear Knuckle Arms Inner Case - 6pc set - GPM TRX4022B"

6061 T6 alloy inner cases for TRX4 rear knuckles

This 6-piece rear knuckle inner case kit is designed for the TRAXXAS TRX4 Trail Crawler platform to improve drivetrain stability during technical trail runs. CNC machined from 6061 T6 aluminum, the components create a rigid housing that helps maintain correct alignment of the inner gears inside the rear knuckle arms while crawling slowly over obstacles.

Functionally the inner cases limit lateral play within the rear knuckle gear stack so gearbox teeth remain engaged more consistently as the suspension articulates. The result is reduced gear lash and more predictable drive feel when negotiating uneven terrain on TRX4 models.

Supplied hardware: stainless steel cap head screw 2.5x8 - 4pcs for securing the inner components. The package includes six aluminium knuckle inner cases to cover both rear knuckle assemblies.

Specifications

  • Item: Rear knuckle inner case set
  • Material: 6061 T6 aluminum
  • Model Number: TRX4022B
  • Compatibility: TRAXXAS TRX4 Trail Crawler
  • Quantity: 6 pcs
  • Included Hardware: Stainless steel cap head screw 2.5x8 - 4pcs
  • Manufacturing: CNC machined

Fit these alloy inner cases to tighten gear alignment for rock and trail crawling on TRX4 rigs; they are a simple drivetrain upgrade that reduces side-to-side slop without changing gear ratios.

This item is compatible with

  • TRAXXAS TRX4 Defender Trail Crawler

 

Product Reviews
1 Reviews
rating
The quality is good and both the delivery and the reception of the order, fast. I can not give more stars, because the price of each component is high, the cost of shipping very high, discounts for good customer null, and generic discounts, to use only

Do these require gearbox disassembly?

Some knuckle disassembly is needed to access the inner gear stack; follow safe procedures and keep small parts organised during the job.

Is anodising necessary for these parts?

The raw 6061 T6 aluminium provides strength and precision; anodising is optional for corrosion resistance or aesthetic preference.

Will this fix a noisy rear end?

If the noise is caused by gear misalignment or looseness, improved housing rigidity can reduce those noises, though worn gears or bearings should be checked too.

Can I run these with beadlock wheels and heavy tyres?

Yes, but heavier tyre setups increase drivetrain loads; ensure screws remain tight and inspect gear engagement regularly after heavy runs.

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