2WD ECX Star Drive Steel CV Set by Hot Racing

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Hot Racing
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Hot Racing optional upgrade heavy duty splined star drive axle kit for 1/10th scale ECX 2WD electric vehicles, including the Amp, Circuit Stadium Truck, Ruckus Monster Truck, and Torment SCT. These axles will NOT work with the Boost Buggy.


  • Heavy duty CNC machined #45 hardened carbon steel construction
  • Replaces factory plastic rear drive axles
  • Blue anodized aluminum pin capture rings with rubber o-rings to prevent movement
  • Design eliminated CV pin setscrew
  • Blue anodized aluminum wheel hub hexes
  • Aluminum bearing crush sleeves
  • Steel is black finished
Approximate overall collapsed length:
108mm (4.3 inch)
Approximate overall extended length:
138mm (5.4 inch)
CV pin:
2.5mm diameter, 11.45mm long
CV coupler:
4.5mm diameter, 7.3mm long
CV ball:
8.9mm diameter


  • (2) rear splined CVD shaft assemblies
  • (2) blue aluminum wheel hub hexes
  • (4) setscrews
  • (2) aluminum crush sleeves


  • Installation of aluminum crush spacer between the two bearing inside the rear hub
  • Removable thread lock (e. g. blue Loctite) on screws threading into metal
  • Light grease for CV joints and shaft slider splines help maintain their longevity


  • NOT compatible with the ECX Boost Buggy
  • Replacement parts include: RECT288XU (outdrive drive cups), RECT288XA (outer stub axle), RECT288CX (CV rebuild)
  • Optional 12mm steel hexes to replace aluminum hexes: RECT288 (using the aluminum spacer between the two hub bearings is required)

This product was added to our catalog on November 29, 2017

Morgan Ibarra
Verified Owner
Wednesday, Jul 25 2018 (3 months ago)
Hot Racing 2WD ECX Star Drive Steel CV Set
i have had no problems i highly recommend them.