Rebuild kit

Restore the transmission of your Revo or Maxx to its original state with the Traxxas TRX-5129 Rebuild Kit

The steel constant-velocity joint is one of the most sought-after components in Traxxas' large-scale off-road models. With intensive use on demanding surfaces, wear on its internal parts is inevitable. This Rebuild Kit TRX-5129 brings together the necessary elements to rebuild it and regain a smooth, reliable, and play-free transmission.

Function and compatibility

This kit is specifically designed for the steel constant-velocity joint of Traxxas Revo and Maxx models. The constant-velocity joint allows the transmission of torque to the front wheels while maintaining the steering angle, which is critical in competitive 4WD vehicles and demanding recreational use. Having the correct —and original— spare parts ensures that the rebuild maintains the original factory tolerances.

When is it necessary to rebuild the constant-velocity joint?

• When vibrations or rattling occur while turning with active traction.
• If excessive play or looseness is detected in the front transmission.
• After strong impacts or prolonged sessions on abrasive terrains.
• As preventive maintenance during long-duration competition runs.

Assembly and preparation

Rebuilding the constant-velocity joint does not require specialized tools, but it does require attention to detail. Before assembly, thoroughly clean the joint housing to remove old grease and dirt. Apply specific grease for constant-velocity joints in the amount indicated by the Traxxas manual to avoid overheating or lack of lubrication. Follow the assembly order of the balls and the inner cage to ensure the proper functioning of the assembly.

Frequently asked questions

Which Traxxas models is this rebuild kit compatible with?

According to the provided information, this TRX-5129 kit is compatible with Traxxas Revo and Maxx models that feature a steel constant-velocity joint. Check the manual for your specific version to confirm compatibility before purchasing.

Can I reuse the outer housing of the constant-velocity joint?

In most cases, if the housing shows no visible cracks or deformations, it can be reused. The rebuild kit renews the internal parts, which are the ones that suffer the most wear with use.

What grease should I use when assembling the kit?

Traxxas recommends using specific grease for constant-velocity joints. Do not use general-purpose greases or unsuitable lubricants, as they can damage the seals and reduce the lifespan of the assembly.

Is it complicated to perform the rebuild at home?

With the model manual at hand and some care, the operation is within reach of any enthusiast with basic experience in RC model maintenance. Traxxas provides detailed exploded diagrams on its official website to facilitate the process.

The Traxxas TRX-5129 Rebuild Kit is the go-to solution for restoring the steel constant-velocity joint on Revo and Maxx models. Designed with original Traxxas tolerances, this kit ensures reliable four-wheel drive performance after heavy use or impact damage. An essential spare part for serious RC enthusiasts who demand consistent drivetrain efficiency from their large-scale off-road vehicles.

Information not available

It has not been possible to verify the exact list of parts included in the kit or the number of units of each component, as the original description provided is incomplete. We recommend consulting the official Traxxas exploded diagram (ref. TRX-5129) to know the detailed contents of the kit before placing an order.