TRAXXAS TRX4 Precision Front Main Shaft TRX4037FX by GPM  [TRX4037FX]

TRAXXAS TRX4 TRAIL CRAWLER Steel Joint And Aluminum Body Front Main Shaft - 7pc set - GPM TRX4037FX
Price:
USD$16.90
Brand:
GPM
Model:
TRX4037FX
GTIN:
4894538284553
Condition:
Brand New
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alt="TRAXXAS TRX4 TRAIL CRAWLER Steel Joint And Aluminum Body Front Main Shaft - 7pc set - GPM TRX4037FX" title="TRAXXAS TRX4 TRAIL CRAWLER Steel Joint And Aluminum Body Front Main Shaft - 7pc set - GPM TRX4037FX"
alt="TRAXXAS TRX4 TRAIL CRAWLER Steel Joint And Aluminum Body Front Main Shaft - 7pc set - GPM TRX4037FX" title="TRAXXAS TRX4 TRAIL CRAWLER Steel Joint And Aluminum Body Front Main Shaft - 7pc set - GPM TRX4037FX"
alt="TRAXXAS TRX4 TRAIL CRAWLER Steel Joint And Aluminum Body Front Main Shaft - 7pc set - GPM TRX4037FX" title="TRAXXAS TRX4 TRAIL CRAWLER Steel Joint And Aluminum Body Front Main Shaft - 7pc set - GPM TRX4037FX"
alt="TRAXXAS TRX4 TRAIL CRAWLER Steel Joint And Aluminum Body Front Main Shaft - 7pc set - GPM TRX4037FX" title="TRAXXAS TRX4 TRAIL CRAWLER Steel Joint And Aluminum Body Front Main Shaft - 7pc set - GPM TRX4037FX"
alt="TRAXXAS TRX4 TRAIL CRAWLER Steel Joint And Aluminum Body Front Main Shaft - 7pc set - GPM TRX4037FX" title="TRAXXAS TRX4 TRAIL CRAWLER Steel Joint And Aluminum Body Front Main Shaft - 7pc set - GPM TRX4037FX"
alt="TRAXXAS TRX4 TRAIL CRAWLER Steel Joint And Aluminum Body Front Main Shaft - 7pc set - GPM TRX4037FX" title="TRAXXAS TRX4 TRAIL CRAWLER Steel Joint And Aluminum Body Front Main Shaft - 7pc set - GPM TRX4037FX"
alt="TRAXXAS TRX4 TRAIL CRAWLER Steel Joint And Aluminum Body Front Main Shaft - 7pc set - GPM TRX4037FX" title="TRAXXAS TRX4 TRAIL CRAWLER Steel Joint And Aluminum Body Front Main Shaft - 7pc set - GPM TRX4037FX"
alt="TRAXXAS TRX4 TRAIL CRAWLER Steel Joint And Aluminum Body Front Main Shaft - 7pc set - GPM TRX4037FX" title="TRAXXAS TRX4 TRAIL CRAWLER Steel Joint And Aluminum Body Front Main Shaft - 7pc set - GPM TRX4037FX"
alt="TRAXXAS TRX4 TRAIL CRAWLER Steel Joint And Aluminum Body Front Main Shaft - 7pc set - GPM TRX4037FX" title="TRAXXAS TRX4 TRAIL CRAWLER Steel Joint And Aluminum Body Front Main Shaft - 7pc set - GPM TRX4037FX"

Technical front main shaft overview

The TRX4037FX front main shaft is a precision-engineered replacement for the TRAXXAS TRX4 TRAIL CRAWLER platform, combining a hardened steel joint with an aluminium shaft body to transmit motor torque to the front driveline with reliable engagement.

The assembly employs a CVD-style head oriented to the centre gearbox to permit increased rotation angles where clearance is restricted, while the cross head is placed toward the front gearbox to maintain consistent driveline articulation under load. This configuration reduces friction points and supports predictable rotation during low-speed crawling.

Hardware and silicone O-rings are supplied to ensure correct spacing and mounting; install as a direct-service spare or as a refinement for driveline response and component longevity on scale trail vehicles.

Specifications

  • Item: Front main shaft assembly, 7pcs set
  • Material: Steel joint, aluminum body
  • Model Number: TRX4037FX
  • Compatibility: TRAXXAS TRX4 TRAIL CRAWLER
  • Included: M4*2.5*11.2 screw shaft - 2pcs, 4*2.5 silicone O-ring - 2pcs, 4*1 silicone O-ring - 2pcs

Use this assembly when replacing worn front shaft components or when tuning driveline stiffness for scale trail applications, and follow standard inspection and lubrication procedures during installation.

What is the recommended orientation for optimal articulation?

Orient the CVD-style head toward the centre gearbox to maximise rotation angle and reduce binding where the centre gearbox is close to the shaft; position the cross head toward the front gearbox for stable articulation.

Are the supplied O-rings critical to fitment?

Yes, the silicone O-rings provide spacing and minor damping; fit them as supplied to maintain correct alignment and reduce play in the assembly.

How should I inspect the shaft after installation?

Verify smooth rotation through full articulation, ensure screws are torqued to secure fit without binding, and check O-rings for even seating; recheck after initial runs.

Can this part be used to refine driveline feel?

Yes, fitting this assembly can change driveline stiffness and responsiveness; use it alongside alignment and lubrication adjustments to dial in desired feel for scale trail crawling.