Competitive Mini 4WD clamp shaft stopper M4WD-38/LB light blue anodize by 3Racing  [M4WD-38/LB]

Tamiya Mini 4WD Aluminum Shaft Stopper -Light Blue - 3RACING M4WD-38/LB
Price:
USD$3.80
Brand:
3Racing
Model:
M4WD-38/LB
Condition:
Brand New
Write a review

Technical clamp shaft stopper M4WD-38/LB for Mini 4WD axles

This CNC-friendly aluminum shaft stopper is specified as an aftermarket spare for Mini 4WD drivetrains. Finished in light blue anodize, the component acts as a clamp-style axle locator and is not intended as a structural chassis element. The contact faces and body dimension are set to engage standard Mini 4WD axle diameters and common retainers; verify axle nominal diameter and trial-fit before final assembly to ensure correct preload and alignment.

The stopper is suited to racers and tuners who prefer metal retainers for consistent axle location and reduced wear on mating parts. Installation outcomes depend on axle profile and adjacent hardware; targeted material removal or calibrated shims can be used to fine tune axial position without affecting wheel runout.

  • Material: anodized aluminum body.
  • Finish: light blue anodized coating.
  • Use: axle positioning and retention on Mini 4WD assemblies.

When installing, avoid overclamping and confirm axial clearance with rollers, gears and bearings across the full rotation. Intended for experienced builders and competitive setups where repeatable geometry and small adjustments are part of setup work.

Check axial play on the axle with the stopper clamped lightly, then add thin shims or incrementally remove material from the clamp face to reach the desired zero play without introducing binding.
With the assembly mounted, rotate the axle and observe roller and gear clearance at full travel. Adjust stopper position until there is consistent gap during rotation.
Use low profile screws of matching thread and length to avoid contact with nearby components. Verify screw head clearance before final torque.
Anodize adds a minimal layer but can be accounted for in final shimming or light finishing. For precision builds, confirm dimensions post finish and adjust as needed.