If you run an older XRAY T Series, the XRAY #305005 Composite Ball Differential Set is a practical upgrade to restore controlled handling. It is crafted to fit earlier model geometry without changing the original layout.
The composite ball mechanism moderates power delivery to the wheels, improving traction and reducing sudden breaks of grip. That promotes more consistent steering and exit speeds on club and classic circuits.
Built to align with legacy T Series parts, this differential is easy to install with standard workshop tools, letting enthusiasts refresh drivetrain performance with minimal downtime.
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